Comment Because (Score 3, Insightful) 783
IMHO, Apple (and to a lesser extent, Google) see any easily user-accessible build-and-run-able code as a potential security hole. Doesn't matter if it's compiled binary or interpreted script, in order for it to do anything interesting, it would need hooks into the OS. And, well, that means holes.
If users can copy and paste a script off a website and run it on their phone, they will. And when that script deletes everything on their phone just after sending everyone in the phone's contact list an SMS to go download the script, people will blame the OS vendor. By making it a bit less accessible, they are trying to make it a bit more 'secure' - and while that may work for a while, it's going to frustrate us who just want some BASIC (or Hypercard, or whatever else) to be available on our platform.