I opted to document my last run-through of my dual boot guide (repartitioning and running two OSes internally, not one from SD), setting up the CM9 preview alongside the latest B&N stock:
It's not a simple or risk-free mod, so I would not suggest just following the steps if you don't understand what you're doing.
[YT]http://www.youtube.com/watch?v=5owXz6fgyjM[/YT]
It's not a simple or risk-free mod, so I would not suggest just following the steps if you don't understand what you're doing.