
Original game data is required (I've tested it with GOG version of BG1 and BG2. EE versions are not supported).
May contain some bugs, since I haven't tested it a lot (only got to Beregost in BG1).
Widescreen mod with native Vita resolution is probably supported, but performance is going to be pretty close to unplayable with it.
640*480 is in 15-30FPS range usually. I strongly recommend disabling character movement and attack sounds in game options to improve it a bit.
I may bump GemRB version in the future, but probably won't work on this port much more, so any help with working SDL2 support or custom portrait/character import/voice selection is welcome.
If you still have any questions, feel free to ask them.