As has been said many times before, BlackBerry 7 is far from a complete overhaul to the BlackBerry OS that has been around for years. It is more or less a refining of BlackBerry 6 that runs on much, much faster hardware. This isn’t to say, however, that there aren’t slick little improvements in BlackBerry 7. The web browser is much faster and actually usable. Still slower than Android, iOS, and Windows Phone 7 in most cases, but, it is in the ball park and doesn’t seem slow in comparison. The screen resolution (Liquid Graphics) seems to be pretty good. Most third party apps don’t take advantage of it, but, the ones that do look great. The Bold 9900 that I’ve played with still takes forever to boot up, but, the 1.2 GHz processor is quite noticeable once it starts up.
In the time that I’ve had to play with BlackBerry devices running BlackBery 7, there really is no single killer feature that would make me say you’ve got to upgrade to a new phone if you have a BlackBerry 6 device in your pocket that you are happy with. I will say, though, that my favorite feature of BlackBerry 7 thus far, is Add to Existing Contact. Third party apps bring this ability to devices running older version of the BlackBerry OS, but, RIM has finally decided to add this natively to BlackBerry 7 and it is a much welcomed addition.