Thanks! we're putting a lot of detail into the animations to make it feel as native as possible. The touch events too - you'll notice that if you touch a link, and move too far away, it'll un-hilight; then if you move back it activates again, just like on iOS. Or in a scrolling panel, scrolling cancels the touch event.

We've had a great experience building with React, and browserify - it keeps everything organised and modular, and is pretty much perfect for mobile app architecture.