Really wicked API. Got to see it a week and a half ago when three friends and I attended a GoInstant hackathon. There we built a web IDE for web languages. The

Really wicked API. Got to see it a week and a half ago when three friends and I attended a GoInstant hackathon. There we built a web IDE for web languages. The really neat thing is it was collaborative (like google drive) and persisted what ever people we were working on, though our project was completely client side. GoInstants API took care of both storing our data, and relaying changes between clients. Really really useful and easy to use.