I've been tryng to install a Twitter application on my new phone, but the ones I've tried are either blocked by the Enterprise Security or aren't designed for the QWERTY keyboard. I've tried Slandr (Blocked Port 80) and Mobi Twitter (doesn't support Blackberry)

I would like to use one of the Twitter apps that uses the GPS on the phone.

Does anyone know of one that I can install that won't be blocked and will support the GPS and is Blackberry compatible?