In addition to the apps mentioned above, the following apps work on Sony:
Dolphin HD 7.1.0 (I had to install Orientation Control for this one to work, still didn't get flash to work though)
I've tried Rock Player lite from the app store, it wouldnt install.
Can you or anyone please indicate what version and how you installed? Was it a hacked GTV?
I've installed some apps I didn't see listed for that matter:
Quick System Info,
OI File Manager
Better Terminal Emulator