NovoCard. Wow, I've been waiting for something like this for a long time. Unfortunately, it's not for Android yet, but for the iPad, but it could revive my old iPad for a while - a Hypercard clone for iOS that comes with a scripting language based on JavaScript in this case. Everything onboard on the iPad, making it ideal for tinkering on the go. And in general, I think the Hypercard structure fits tablet computers pretty brilliantly. I'll probably play around with it.