[cnp]

I knew neither Ruby nor Objective-C when I started (though I do know a few other languages, primarily JavaScript) and was able to begin legitimately understanding both within just a few days. I feel that, if needed, I could begin writing in pure Obj-C, though I don't think that that will ever be needed due to how seamless it is to integrate 3rd party Obj-C libraries into RM, as well as its Interface Builder support. Plus --and this is what I find most important -- writing in Ruby is just plain fun.

All in all, it was one of the most enjoyable development experiences of my life. Can't recommend RubyMotion highly enough.