Most probably after this, I'll add server side execution (since Apple doesn't allow execution of downloaded code on iPad)
Thus, you can run Python, Ruby, etc from the iPad. Worqshop will transfer the code to server, execute, and bring the results back to the iPad. Seamlessly and transparently.
You may be able to do it through emsctipten versions of ruby and python which you can load in webkits JavaScript engine. http://repl.it works like that.
Oh, I need to clarify. In my mind, it's like a shell, eg Python shell or Ruby shell. And execution here refers to the traditional execution of programs / scripts. I don't plan to become a PaaS like Heroku that handles web apps execution.
Thus, you can run Python, Ruby, etc from the iPad. Worqshop will transfer the code to server, execute, and bring the results back to the iPad. Seamlessly and transparently.