Terminal IDE is a complete java / android development environment that runs on the phone.

javac, java, dx, aapt, apkbuilder, signer, ssh, sshd, telnetd, bash 4.2, busybox 1.19.2, vim 7.3 and a nice terminal emulator are all available.

It uses the command line with a correctly configured vim, and has a custom ANSI keyboard that works well.

The vim editor has been setup with java development in mind and is extremely powerful. Also vim has been setup by default in a humane way, so that starting on this long and glorious journey won't begin with a punch in the face.

Best of all you can log in via telnet / ssh and use your home keyboard/screen combo to program!

AND the whole app runs WITHOUT needing ROOT permissions.

It's all available with normal user permissions..

Also the project is released under GPLv2

http://code.google.com/p/terminal-ide/