Hi !
Sorry for the late answer. Concerning mobile gaming, i just rewrote the mouse event, and added proper touch event in the engine (with also mouse event emulation when used on a "touch" device). Which means that, except for other project I'm maybe not aware of, melonJS is only starting now to be fully usable for mobile gaming. Bitzz Author is also adapting his game for mobile, but I don't really know what is the status rigth now (there is another thread in the forum on this, if you want to look for it).
I however did some experimentation, see :
There are not really packaged for mobile, but fully running on iOS & Android (thought the whack-a-mole is all but optimized and a bit slow on old devices).
I however don't really believe that mobile devices (except high-end one) are yet really suitable for javascript based game "as it", and while the promise of "code once, run everywhere" is there, other "tools" like DirectCanvas (from appMobi) are a good complement to accelerate properly the code and run as fast as native apps. If you check around, that's the kind of stuff actually used when deploying JS/HTML5 on mobile (through Google Play or the app Store).
So as a conclusion, no, we don't have yet any public kick-ass game running on mobile, but if you wish to join the adventure and be the first one, you're more than welcome :):):)