Worqshop: run your Python/Ruby scripts from the iPad
worqbench.tumblr.com
worqbench.tumblr.com
I will say this, I wonder if Apple would approve it if you were running the code locally. They've certainly eased off in some respects about people running interpreted code locally for certain applications. The difficultly would be then building the interpreter in without a load of hacks and workarounds and spending lots of time for Apple to potentially say no.
far easier, no. red to wait for the cloud :)