David,

wonderful! Thanks for the heads-up. I've been playing around and almost everything works on the iPad, except for the Flash part of course - but that's easy to stream to iTunes in the background.

I seem to get a bug with the mouseover vocab, which happens in Chrome 16 and IE9 on my PC, and in Safari on the iPad: when I click on words to get the definition to stick (on the PC) or to appear (on the iPad), then I can't close the tooltip, I need to refresh the page. I hope you can reproduce this...