Is there any sort of programming environment that runs ON an IPhone?

Question

I'm just recalling the days when Radio Shack used to sell pocket computers. (Many moons ago, w/ only a few K of memory.) They had the ability to write small programs on Pocket computer. Maybe it's just nostalgic, but I alway thought that was handy. (Through the fog of my memory.) Is there any capability like that for an Iphone?

Edit: I can kinda understand not allowing a like a GameBoy emulator on the App-store, it's kinda like saying your ok with people loading "ROMs" and could get them in trouble. When you start profitting from an Emulator the license holders get pissy, just think about "Bleem" and Sony. Sony buried those guys. I suppose Javascript is better than nothing. What about Java in a sandbox? Or if they want something they aren't afraid is going to cannibalise there market, a BASIC interpreter.

Answer 1

I don't believe that you are allowed to in the terms of service for the App store. Isn't this why mono programs have to be staticly compiled if they are going up to the App store.

Answer 2

If you are looking to go off the beaten path, James Long's blog details how to run Gambit Scheme code on the iPhone. Load the application once and then load code changes progressively as needed.

In a following blog post, he details how to debug your applications remotely with an REPL. Very cool stuff. Between the simplicity of Scheme and the existing work he's done on his blog, a lot of the work/difficulty involved with developing in a "non-standard" way on the iPhone is taken care of for you. It's worth a shot!