I haven't got around to the MMC boot yet - just as a partial protection against WSOD is a great idea. Yup, the learning curve here is very steep. My advice is to take it steady, get used to using the device first and only then start looking at the more advanced aspects of Nokia 770 ownership. There are instructions for becoming root (use the forum search and you'll find them). As for xterm, you can install it from the Application Manager. Seriously though m8, I'd chill with the advanced stuff until you're more at ease with the Nok.