TomTom Go Live 1005 World review However, the winning feature is definitely TomTom's 'HD Traffic'. This source of traffic information is updated every two minutes and is extremely useful when a driver is against the clock and needs to re-route. As soon as an accident or delay is found en-route, the device alerts the driver and will reroute if a new option is available. Some new extra features such as "tweet, search and go" allow drivers to safely tweet their arrival time to their followers from their TomTom and also look up destination reviews through a partnership with TripAdvisor and Expedia. They are neat - but also just a bit gimmicky - especially as the point of tweeting is do it live - not pre-set it as you have to do with this Twitter feature in order for it to be safe for driving. TomTom's nod to social media is appreciated but smartphones provide more than enough capability in this area. Sat-nav companies are threatened by new entrants - such Apple's new maps for iPhones, in-built sat-navs into cars and other more sophisticated map apps for all smartphones. However, in spite of the large competition, the TomTom Go Live 1005 World is an impressive device. The company just need to rebuild the confidence of their customers again post the outage in April 2012, which left many people lost with only their smartphones (TomTom's biggest rival) to turn to.