Frankly, I really liked RubyMotion. It doesn't save you from necessity to learn Cocoa touch, but it just makes the experience much more interesting with Ruby. The whole process was very very simple.
Yeah, and it looks like a 2-3 hour app. A seasoned developer could build that in the same time with Objective-C, or HTML5 / CSS3.
It is crappy and it is simple, but that's the best part of it.
Looks great for a few hours of work. I think this is the second RubyMotion app from App Store, first one is Mustachio.
I hate it when people lie about the time it took to accomplish something just to look smart.
I don't think he lies, have a look at his CV (pdf):