i modified the extrootfs script because i was unable to partition the card. i didn't realize that you couldn't do the partitioning from the 770 device until i read this thread. maybe you can and i am missing something, i'm somewhat of a n00b and only have mac osx at my disposal. but....i was able to modify the script, and do it all on the device itself after installing the port of vim. the device is definitely snappier so thanks to eveyone who shared their info to help me out. i was a little scared to make mods to the script, but it all worked fine and the only downside is that i have no external storage...that is untl i spring for the 1GB mmc! if anyone wants the modified extrootfs script i would be happy to share it. i'm just so happy this hack worked and my mods didn't brick the device!

-posted from a 770.