I've been an owner of a Blackberry 8100 for approximately 6 months now, and I have to say that its fine balance of features and portability have made this a great choice for anyone that needs connectivity to their enterprise server.However, just because this phone is a hot product right now doesn't justify a hasty purchase. There's a lot of functionality that this phone has that demands its price tag and if you don't need to connect to an enterprise server or sync with outlook, find another phone. There are a lot of cheaper options out there for web/email/mp3/video phones.If you are looking for a phone that functions as a mobile office, I suggest looking for another model of blackberry. The button layout on this new blackberry aren't set as single keys, meaning you get 2 letters mashed into one button, which makes cranking out emails somewhat more clumsy than the "fatboy" versions of other blackberry models.When all is said and done, this is a powerful phone that I see as a viable mobile office solution for a casual user. Its balance of features, stability, and portability make it a great choice.