Nope, no third party apps to speak of on any of the three 8320's I've had. I haven't seen much feedback on UMA and the .184, so I'm kinda reluctant to give it a shot. I am really not sure what else to try either to be honest, other than to just keep beta testing it for t-mo (haha)
That's OK I know I adopted this early so there will be bugs to work out!