I originally got a 770, thinking I didn't really need the extra features on the n800. My 770 got the white screen of death, and after talking to Nokia a couple of times, they sent me a n800 in exchange. Now having a n800, I have to say: go with a n800 above a 770. The better CPU makes a world of difference, and it's almost impossible to find RS-MMC cards for the 770 (yes, amazon has them, but only up to 2 GB). Also, new applications are constantly being released for the n800, while the 770 has been slightly left in the dust.