Updated to GB yesterday. White background is unwelcome, but other than that, looks pretty sharp.
One big FAIL, though, call history does not show call time, date, or duration. Just a useless countup timer showing how long ago a call was made. For a supposed smart phone angled towards business users, this is a dumb mistake. Call history should be visible at a glance, with details in list format, without having to load an app or press the contact 3 times to get the call details. This was a feature of 2.2. Why they raped it blind bewilders me.
All my widgets and apps seem to be working as they did with 2.2, so no issues there, yet.