Been working on debugging the core of a JavaScript GameBoy Advance emulator. Wondering if anyone has cool UI mockups they'd like to share so it doesn't look like poo. Project is at https://github.com/grantgalitz/IodineGBA

Right now it works best in firefox nightly, secondly google chrome. No, IE is not supported, and you'd need IE10 anyhow to achieve even partial the speed of other browsers (Do have to hand it to MS though, IE10 is faster than IE9). And yes, no plugins needed, that was the point.

Some screenshots: http://imgur.com/a/28EWR

P.S.: Don't even dare ask for a BIOS ROM, you'll need it along with your game ROM to make it work. >.>

Edit: I should mention that until I'm debugging, it'll run kinda slow, as there is no special speed hack version to circumvent edge case issues normal games wouldn't poke and prod at anyhow (The core is trying to clock everything out manually and doing most memory accesses 8 bits at a time, even if it's a 32 bit bus request).