So, you want to build an app, but your team is Ruby based… That’s exactly what RubyMotion was created for. Objective-C isn’t evil, it’s just not efficient to try to work another code base into your team process when you’re already rolling in Ruby land.
Yes, you still need XCode, but such is the life with iOS anything. At least they’re upfront with the guidelines they want you to follow to get into the AppStore! [HIG]
As you dig in, it’s pretty much gems all the way down [haha] making every step of your app building process as Ruby-ified as possible. From testing with MacBacon, to Ruby syntax for your Objective-C method calls with Bubble-Wrap, it’s all there for you and your team to keep on truckin.