well doc, perhaps you can check into oequacki? it's html5, but just in beta, so i don't think it's downloadable for use yet. wouldn't know, i'm on my 3ds, so i can't do much.
there's also animaki which is html5 but animation/sprite based, but i can't get that site to load. it'd be a good addition to an mm fansite methinks...
but i'll draw something soon regardless, if i still can. i hate java & flash, to be honest, and it's a shame there's not an alternative (yet)
Topic: The future of the oekaki board
Update by Dr. Cossack