This looks great. I'm primarily a Flex developer and JavaScript for web apps has always scared the bejesus out of me as I felt I was back to the dark days of ActionScript 2. I still feel I'm faster with strong typing and a good IDE (I hardly type anymore it's all code completion) but micro frameworks like this are a huge step in the right direction.
Is there an IDE for serious JavaScript development? Right now for JS work I use TextMate with a bunch of custom tag triggers.
Try using haXe for your JS code. The syntax is extremely close to AS3 and you'll get the static types and classes back, as well as lots of other nifty stuff.
IDE support is still kind of lightweight, but there are several options out there: http://haxe.org/com/ide
I use Geany, because I only really need context-sensitivity, highlighting, and search+replace.
Is there an IDE for serious JavaScript development? Right now for JS work I use TextMate with a bunch of custom tag triggers.