A bit of history
MacRuby was announced by Apple with the purpose of offering a modern and dynamic environment to develop full-fledged and efficient applications for the Mac. Since then, MacRuby saw a series of significant releases and in 2010 became a stable and viable alternative to Objective-C with the inclusion of a LLVM-based compiler.
Apple released the Mac App Store, which welcomed apps written in MacRuby. Later this year, Apple shipped OS X Lion with features written in MacRuby.
Laurent Sansonetti, MacRuby's creator and lead developer, decided to leave Apple in order to push Ruby where it has never been: Apple's mobile operating system, iOS. He decided to incorporate a company, hoping to make a living doing what he loves. The company was named HipByte.
RubyMotion 1.0 was released to the world. It quickly received a lot of praise and attention from the developer community. The ecosystem started to grow significantly, and libraries, screencasts and books started to appear.
The first RubyMotion conference, #inspect, happened in Brussels, Belgium. A few months later, RubyMotion 2.0 was released with support for OS X application development.
#inspect was renewed a second time, in San Francisco, California. At the conference, RubyMotion 3.0 was announced, with support for Android. A public beta followed up a few weeks later.
RubyMotion 3.0 was released, featuring full Android support. RubyMotion now lets Ruby developers write iOS, OS X and Android apps, all using the same toolchain, language and text editor.