The Nuggeta team is considering making an official one themselves, and I'd rather let them do it should they want to.
In case they do Stencyl will always have an updated extension which is quite a good thing.
Right now, my extension only has 2 blocks, and I plan on expanding it as soon as I start working on my second multiplayer test (sometime this week). I'll post it up as soon as I have something usable and easy to use.