I’ve been excited about using RubyMotion and Pixate to build iOS apps for a while now. This gem seems to be exactly what I’ve been looking for. It even supports SASS.

RubyMotion allows you to build fully functional iOS apps in Ruby.

Pixate allows you to style iOS apps using CSS. (Techcrunch coverage of their launch here )

SASS is a CSS framework giving you variables, nesting, mixins and more.

This could be a very powerful toolchain.