Some nifty things (and one not-so-nifty):
I found a good Japanese font to use for the iPad: it's called "Hiragino Mincho ProN". It took me a while to track down that information, but I was very pleased when I did. For the Mac desktop, the font name is "Hiragino Mincho Pro". I'm using "MS Mincho" as the default.
Lastly, I've posted vocabulary, grammar and kanji for Genki Chapter 15.