FYI, T-Mobile has released an update to the 7100t handheld software. It's version (3.8.0.142). I have no idea what it does, but the application loader reports that the following applications are updated:
BlackBerry 3.8 System Software
BlackBerry 3.8 Core Applications
BlackBerry API Library
BlackBerry Crypto 1 Library
BlackBerry Crypto 2 Library
GPRS Enhanced Roaming Enabler
User Interface
The software is available here:
http://www.t-mobileapps.com/download...m?selDevice=11