> I tend to like command line / REPL interactive development... but does this really add any significant benefit when making iPhone Apps? I would imagine if yo

> I tend to like command line / REPL interactive development... but does this really add any significant benefit when making iPhone Apps? I would imagine if you have a lot of calculations or String manipulations involving non GUI/device interaction this could be handy. You could certainly us it for GUI interactions. Take the MacRuby equivalent to: [[[[[[[UIApplication] sharedApplication] delegate] window] rootViewController] view] That gets you the main view on screen, to which you could add or remove elements at your pleasure.