James Middleton says sister Kate is 'on the mend' from severe morning sickness Duchess of Cambridge's brother, 27, appeared on GMA on Wednesday morning to push his latest business - pics printed on marshmallows Boomf sells a box of nine marshmallows for $25; company earnings are unknown for business launched in late 2013 James' last company Nice Cakes ran into trouble when it provided cakes for a party printed with the image of Princess Diana He revealed that his wedding gift to William and Kate was their dog Lupo - 'a little treat to them' He talked about Prince George, saying: 'I want to be the best uncle possible... the cool uncle, the fun uncle' James appeared on GMA a week after sister Pippa was seen filming segment for rival Today show amid claims of reporting gig She is hoping for a deal 'upward of $500,000' after granting NBC an exclusive this summer where she talked about Kate and Prince George Kate's parents offered paraphernalia themed around Royal Wedding and Queen's Diamond Jubilee through their mail-order 'Party Pieces' business By Louise Boyle for MailOnline Kate Middleton's brother starred on TV on Wednesday morning as he revealed tidbits of gossip about his sister and Prince George in order to get unprecedented publicity for his start-up marshmallow company. James Middleton, 27, appeared on Good Morning America where he told viewers that Kate was 'on the mend' from the severe morning sickness she has suffered during her second pregnancy. He said: 'She's better. It's not unknown that she has suffered from this acute morning sickness and fortunately she is, I think, on the mend.' James also revealed that William and Kate's beloved pet dog, Lupo, was a gift from him at the Royal Wedding in 2011. The Duchess of Cambridge's brother James, 27, appeared on Good Morning America on Wednesday, a week after his sister Pippa was spotted filming a segment for the Today show The 27-year-old entrepreneur took a walk with GMA host Amy Robach where he discussed his sister Kate's morning sickness but remained coy over a rumored Royal trip to the Big Apple James' appearance on GMA comes just a week after sister Pippa was spotted filming a segment for rival Today show as she is in early talks to take on reporting gig at NBC. Pippa was spotted briefly in New York last Monday before flying out to Jackson Hole, Wyoming to film a reported 'test piece' about a 'hoedown' dance. The freelance columnist is hoping for a deal 'upward of $500,000' to report on lifestyle and health issues for NBC, according to reports. Pippa first piqued NBC's interest in June when her interview, where she chatted over tea about her 'sisterly relationship' with Kate and doting on Prince George, brought in high ratings for the network. It is expected that Miss Middleton, a former party planner and cookbook author who has been writing occasional columns about sports and lifestyle along with the online magazine of her parents' company website, will continue to focus on these subjects in her new role. 125 shares It is highly unlikely that Prince William's sister-in-law would report on the Royal Family for NBC as the subject is deemed off-limits by Buckingham Palace. But making the most of America's obsession with all things royal, Pippa's younger brother appeared on rival GMA to cash in on his Royal connections and push his latest business venture Boomf. The start-up gift company personalizes marshmallows by printing photos on them (a box of nine costs $25). He also discussed his connections to the British Royals including his role at the Royal Wedding in 2011, where he read a bible passage from the pulpit during the ceremony. Middleton is dyslexic and was forced to learn his reading by heart. And although the experience was 'absolutely terrifying', he said: 'The most wonderful thing about that wedding was despite the billions watching, it felt like a family wedding.' He also spoke about his special gift for his sister and new brother-in-law, saying: 'My little treat for them was to give them a puppy and Lupo was their gift.' 'Wonka-in-chief' James Middleton (right) with Boomf partner Andy Bell were in New York to push their marshmallow business on morning television Kate and William with their son, Prince George, alongside Lupo, the couple's cocker spaniel, and Tilly the retriever (a Middleton family pet) in the garden of the Middleton family home in August 2013 in Bucklebury, Berkshire James also revealed what it's like to be uncle to the future king and the hysteria surrounding the birth of Prince George last July. 'The most wonderful thing was that everyone was celebrating with us,' he said. Me, becoming an uncle and my parents becoming grandparents. It was exciting. He added: I still see Prince George as my nephew and I just want to be the best uncle possible. Like any uncle wants to be, I want to be the cool uncle. 'It's wonderful to have another niece or nephew on the way.' He admitted that 'he hadn't even got as far' as thinking of Christmas presents for George this year. The 27-year-old entrepreneur said that despite Kate's busy royal engagements and Pippa's jet-set lifestyle and freelance journalism, the Middleton clan remain close. 'We're a really close family,' he said. Actually we see each other and speak on the phone all the time. We'll see each other - the odd Sunday lunch or popping in for a coffee or something like that.' He was coy when GMA presenter Amy Robach said she would be 'very excited' to host sister Kate during a rumored upcoming trip to New York. 'I heard that too, her diary plans I don't really know,' James claimed. Middleton was in New York with Boomf partner Andy Bell to promote their marshmallow-printing company. James Middleton with sister Pippa Middleton (center) and Autumn Phillips, wife of Peter Phillips, at the Invictus Games on September 12, 2014 in London The 27-year-old, who calls himself the 'Wonka-in-chief' of the firm, presented GMA with a personalized box of marshmallows featuring their faces in edible ink. Boomf's website claims that the name comes from 'the sound of the mallows landing on your doormat'. Mr Bell added: 'If you were teaching a marshmallow to speak its first word would be "boomf."' James Middleton, who shares a $1.6million apartment in London's swish Chelsea area with sister Pippa, is on his third business venture in six years. He previously launched the Cake Kit company at the age of 21 after dropping out of Edinburgh University. Around a year later, he transformed the business into Nice Cakes. But despite Royal connections, the cake business didn't take off. Accounts filed earlier in 2014 revealed how Nice Group London Limited made a total loss of around $33,000 for the 12 months to March 2013. It means the company, which was set up in April 2011 by Mr Middleton, is yet to post a profit, having lost $31,500 in its first year of trading. The company also owes creditors close to $57,000. The company also suffered several PR disasters - the cake company was selling a line of "adult" products including a "Wonderful Wife" cake adorned with the slogan "scrummy boobies that make my hands happy." Also in the "naughty" range was a "Stud Muffin" design, showing an image of a man alongside the words "a willy that wriggles and gives me the giggles." After questions were raised over what the Royal Family might think, the 'adult cakes' disappeared from Nice's website. James Middleton making a reading during the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011, an experience which the dyslexic 27-year-old described as 'terrifying' In 2008, James was hired to supply special cakes to a birthday party held by Hello! magazine. One of them carried an image of the late Princess Diana. At Buckingham Palace, they reportedly "shuddered." James admitted on Boomf's website that 'people like cakes with photos on but don't want to pay for delivery'. Boomf was founded in November 2013 and so far has filed no earnings reports. However, Mr Middleton is hoping his latest quirky business will attract a wealth of custom. There has been a glut of media coverage of Boomf, including a launch of its mobile-printing unit at high-end department store, Selfridges in London. In typical start-up mode, the company has a well-populated Twitter feed with almost 3,000 followers, where the team were quick to capitalize on the GMA coverage. When it comes to matters of growing business, James can always lean on his parents, Carole and Michael Middleton, for advice. The couple have built a thriving empire called Party Pieces which began in their garden shed in 1987. The family's mail-order firm is worth upwards of $47million, according to city experts. However it is impossible to know the Middletons" exact worth because the firm is a partnership rather than a limited company and it is not obliged to publish its accounts. But Prince George's grandparents have also come under fire for appearing to milk Royal connections for their booming trade in balloons, banners, Christmas stocking fillers and pinatas. During the 2012 London Olympics, organisers asked the Middletons to make "minor changes" following an investigation into themed products they were hawking. When Kate was pregnant with Prince George, their website offered miniature castles, "prince" and "princess" banners and balloons are among the other royal baby-themed products. The website also offered paraphernalia themed around the Royal Wedding and the Queen's Diamond Jubilee. In the run-up to the Jubilee festivities, the company was selling, via its website, such gaudy knick-knacks as a cardboard teapot vase in the shape of a state carriage, royal coat-of-arms cups bearing the words "Long Live G&T" and canape picks featuring crown‑wearing corgies. James Middleton brought along a personalized box of photo marshmallows during his trip to Good Morning America on Wednesday James Middleton appeared with Boomf partner Andy Bell on GMA on Wednesday where he treated the presenters to a box of his personalized photo marshmallows Pippa Middleton was spotted in Jackson Hole, Wyoming lastweek taking part in swing dancing while she was filmed by cameras in what appeared to be a test segment for NBC Not to be out done in the Royal ratings grab, the Today show featured a segment on a new Royal auction. A slice of wedding cake from Kate and William's nuptials in 2011 is being sold to the highest bidder along with a collection of the late Princess Diana's dresses. The slice of traditional fruit cake with icing is expected to raise up to $2,000. A pale pink gown by London-based designer, Catherine Walker, is expected to raise up to $80,000. The dress was worn by Princess Diana to the theater in 1993. The collection will be sold through Julien's Auctions, 'the auction house to the stars', on December 5 and 6. A slice of wedding cake from William and Kate's big day was featured on the Today show on Wednesday and is being sold at auction where it is expected to raise close to $2,000 Not to be out done, the Today show also had its Royal segment today - about an upcoming auction of Wills and Kate's wedding cake and Princess Diana's dresses