So I gave myself a challenge : Write a simple cloud IDE in a language you don't know yet on a platform you haven't used.
The result : www.tryperl.com
You can write mostly any perl code (upto 5.10) with a snazzy STDIN option you can use ARGV and <>. If you sign in with GitHub it maintains all your scripts as personal github gists
Sweet and Simple!
It has a mostly
secure sandbox that runs perl code, like I said I'm a perl/linux newbie and that's why it's mostly.
See this for the stack I used: www.tryperl.com/about
See this post
for my server security implementation.