Designing JavaScript applications with Interface Builder

Last year, I was amazed with the power of Cappuccino when they showed off a Keynote.app clone written entirely with JavaScript.

The 280 North gang released version 0.7 this week, and inside there is a new tool that made my jaw drop. The nib2cib tool allows you to design your application with the gorgeous Apple Interface Builder, and then translate the resulting nib/xib into a cib that your JavaScript app can use directly.

It even supports Target/Actions and Outlets...

I'm not a JavaScript applications developer, but I find this truly impressive.