Android is not a fork of Linux. It uses the Linux kernel. End of story. Programming on Android is not easy. As you want ruby you can have a look at SL4A [1].

Android is not a fork of Linux. It uses the Linux kernel. End of story. Programming on Android is not easy. As you want ruby you can have a look at SL4A [1]. There are several terminal emulators and IDEs like Terminal IDE[2] that was mentioned in the article. From the descriptions it seems to have Vim or at least bindings for it. There're also a few IDEs like DeuterIDE[3]. There's even a git client.[4] [1]: https://code.google.com/p/android-scripting/ https://code.google.com/p/android-scripting/ [2]: https://play.google.com/store/apps/details?id=com.spartacusrex.spartacuside https://play.google.com/store/apps/details?id=com.spartacusr... [3]: https://play.google.com/store/apps/details?id=com.didactic.DeuterIDE https://play.google.com/store/apps/details?id=com.didactic.D... [4]: https://play.google.com/store/apps/details?id=com.madgag.agit https://play.google.com/store/apps/details?id=com.madgag.agi...