Has anybody played around with using Rails to create Mac OS X
Or is that just sick and wrong?
Neither, in my opinion but from my understanding, Mac OS X Widgets (and
I think you can also leverage built-in Mac OS X libraries and run Ruby
scripts inside your widget since Ruby is shipped with the OS. Alas, RoR
does not come shipped with Mac OS X (yet?).
You could build web services with RoR to feed your widget but the actual
widgets only use client-side web technology.