There should be an scratch ipod touch/iPhone app. Then, you can post things while your on the go.
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There has been alot of talk about this in the forums, but you have to remember that developing costs money, ($300 dollars for the standard graphic SDK) and MIT dosen't put much money towards scratch, (Not that I know of...) so it probably won't be happening anytime soon.
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In the interest of keeping the discussion centralized, please use the stickied topic "Scratch on Portable Devices" which you can get to with this link:
http://scratch.mit.edu/forums/viewtopic.php?id=15263
Thanks!
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