Proper Movies - GP2X supports a few formats DIV-X and X-Vid are the main and they run perfectly with auto sizing so if they are really small or realy big they still fit on the screen.
The amiga emulator is still being worked on and theres a new version due out soon with some bugs removed that stopped turrican 3 and shadow of the beast working.
Also the current version does not support Ham modes (previous versions did)so theres issues with colours in some games. However this is also being worked on.
Most games that are working are full speed.
