I know there used to be an app of Scrath for the iPod, and I was just curious what it was like.
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You can still get it (with a jailbroken idevice).
There was a player. and there were buttons: green flag, stop, browse, keyboard, and lock movement.
browse would give you the scratch site to look for a project. keyboard would let you type one letter at a time that broadcasts that key being pressed. lock movement lets you move and scale the project window size.
that's mainly it.
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It's on Wiki, but here's what the project viewer looked like: http://wiki.scratch.mit.edu/images/Scratch_Viewer.png
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