Gave myself the day off (after riding Around the Bay in a Day yesterday, along with 16,000 others) and wandered into an Apple reseller to play with an iPad. Picklet Builder doesn’t work at all. Interface doesn’t even load. Might be no JSON parser, or something.
But it’s probably not that far off.
Bonus link via Zeldman;
Touch Gesture Reference Guide by Luke Wroblewski et al