The collection of games has been there for a while (and I suppose it grows over time), but the ability to play them in a browser is only a few months old. In fact they're actively looking for more developers to improve the speed.

It's that time again.... I'm looking for a willing volunteer coder (C++ with some Javascript) awareness who wants to take a shot at JSMESS. We have a strong theory that someone could look at the code and, essentially, fix the speed problem (which would likely fix the sound). Are you out there, coding hero? https://twitter.com/textfiles