X11-Basic Homepage. And since I'm on the topic of Basic - X11 Basic is a GFA Basic clone that has many extensions and runs on all possible systems. Among other things, there is also an Android version - although on my Galaxy Nexus the font is no longer elderly-compatible and on the Nexus 7 I'm considering reaching for a magnifying glass. With this Basic, however, it's more about being able to maintain old habits rather than really working with the new systems - the Android specifics are quite manageable.