NR Cards (TM) 16GB Nook to Android bootable microSD Card (Nook Tablet)
The NR card gives me my first exposure to Android, so I'm just getting started on that adventure.  But the card is simple to use.  Insert it with the Nook Tablet off, turn it back on and it boots into Android.  If you want to get back in the basic Nook Tablet configuration, you press the power button briefly and tell it to reboot.  To get from Nook to Android, you turn the tablet off and then restart it.  The process is easy and, to anyone familiar with turning a Windows PC on and off, very fast.<br /><br /