Sproutcore fails on another point though with making too much "improvements" on version 2.x. Why would anyone consider using sproutcore 1.x if it's already deprecated, and version 2.x is far from ready, as well as the docs. The sproutcore demos doesn't even work. You gotta have working demoes. There's no excuse for that - try getting your boss to accept a framework with no working demoes.

If you don't manage to get a home run with version 1.x just stick with it and fix the damn bugs, instead of doing the big rewrite, with the promise that it'll eventually work. It'll just work if you stick with it and fix the last 10%.