I'm happy booting CM7 from the SD card and am not in any particular hurry to flash internal memory, but I would like to get to that point to see the performance differences. Also, I think flashing internal memory would be a better use of storage space and make it a bit easier for me to transfer files, etc. I don't consider the option to boot from SD card vs internal memory dual booting. Is it dual booting? I was under the impression that there's an option to flash internal memory with CM7 and B&N to dual boot from internal memory (not involving the SD card).