I wasn't sure what RubyMotion was. If you are also wondering, here's what Wikipedia [1] has to say:
RubyMotion is an IDE of the Ruby programming language that runs on iOS, OS X and Android. RubyMotion is an open-sourced commercial product created by Laurent Sansonetti for HipByte and is based on MacRuby for OS X. RubyMotion adapted and extended MacRuby to work on platforms beyond OS X.
RubyMotion apps execute in an iOS simulator alongside a read-eval-print loop (REPL) for interactive inspection and modification. 3rd-party Objective-C libraries can be included in a RubyMotion project, either manually or by using a package manager such as CocoaPods. Programs are statically compiled into machine code by use of Rake as its build and execution tool.
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I wasn't sure what RubyMotion was. If you are also wondering, here's what Wikipedia [1] has to say:
[1] https://en.wikipedia.org/wiki/RubyMotion