Vector based UI design tool that generates ObjC
I love the execution of this app, but I disagree with the underlying idea for most cases.Drawing your UI is never ever going to be as cheap as loading a converted PNG (which Apple's modified pngcrush converts for you). I think a lot of devs have the draw/vector vs. precomposed bitmap tradeoff the wrong way round.
Drawing all of your gradated UIButtons with CoreGraphics methods is a false economy compared to just loading a stretchable PNG. Almost all of Apple's UI system imagery is bitmap based, and for a good reason.