I doubt it, Apple forbids apps from downloading executable code (including your own). If it's anything like Codea[1], you will have to copy/paste your code in and out of the app.

EDIT: Per the manual: "Lisping registers the .scm filetype with iOS so that you can import Scheme source into lisping by emailing a .scm file to your iPad." You can use Dropbox, etc. to get code in/out as well. Given Apple's history, doubt this will survive long.

[1] A Lua IDE and game engine for the iPad http://twolivesleft.com/Codea/