Ask HN: Programming on Mobile Phone.

I just bought the Samsung Corby touchscreen phone. While playing games on it, it just struck me that if we can edit texts files and view pdfs on a mobile why cant we program on it?Ok not like actual major programming work, but lite tests for the time u have a brain wave and just need to test it. I searched for it and found some non mainstream scripting languages like hecl[1], mathpro [2] and mobilebasic [3].

I was wondering if anyone knows implementation of a mainstream(er) language. I think something like lisp would be good also as jRuby can be run on JVM cant a java enabled mobile act as JVM?

[1]http://www.hecl.org/ [2]http://www.mobile-sciences.com/ [3]http://www.mobilebasic.com/