Since we're discussing updates, I'd like to second Pliskron's request for GBC BIOS support.
Yes, I know OhBoy lets you use custom palettes, but the GBC BIOS recognizes 90 or so monochrome GB games and automatically loads built-in custom palettes for them.
I think it would be a nice feature, having a custom palette automatically load without having to fiddle with the menu, even if it only affects around 15% of games for the original GameBoy.
GBC,GBA,GBA SP,NDS,NGPC,Panasonic FZ-10 3DO,NES,Sega Nomad,Sega CDX w/Power Base Converter,PS1,PS2,PS3,Saturn,Dreamcast,PC (Win 98, XP, 7),Dingoo A320,Dingoo A330,Gemei A330,LetCool N350JP,PAP-GAMETA,GCW-Zero SE,Kyocera Rise,2DS,GP2X-F100,GPD G7,JXD 100,JXD A1000,JXD A3300,JXD F3000,JXD V5000,JXD S7300B,Hyperkin SupaBoy
Currently playing: Theatrhythm Final Fantasy Curtain Call (2DS)