Is there anything like Codify on Android? Typing doesn't exactly sound like a pleasure, but dragging parts together like in Google's App Inventor seems like it could work. Something simple and polished so you can teach non-programmers ideas without caring too much about syntax.
I don't think Apple ever intended you to. The iPad is mostly a consumption device— not a production device. They've always been adamant that it's not supposed to completely replace computers but to complement them (I'm pretty sure they've always said that...).
It's a big reason I'm not trading in my netbook anytime soon.