I looked through all 10 pages of this thread and couldn't find any info on operation of the USB drive. I don't care for iPod/iPhone (I love my Android-based device), but USB option is very interesting. So here are a couple of questions:

1. What is the maximum capacity of supported USB drive? (can I use like a hundred-Gig USB harddrive?)
2. Please list which buttons on the front panel are available with USB drive. In particular how does the navigation works? Can I select Next/Previous file? Next/Previous Folder? Fast Forward/Backward? Playlist support? Etc.
3. Does it remembers the last track (or even better, the last part of the track) was it playing before turning off the ignition, to resume at the previous position?

P.S. I'm a Software Developer and can easily write an app for Android-based phones to support any custom functionality...