I've never run any form of Linux before, but I did do a little work on Unix systems in my Uni days (close on 20 years back).

The upper GB limit on MMC is 2gig .... and practically thats the same on SD as well (discounting SDHC, although apparently thats mainly a firmware issue, not hardware?).

Regardless, both my colleague and myself have gone and ordered the 770, and 2 x 2gig cards to play with. the 2 gig cards were CHEAP - less than £7 from SVP.

Its going to be handy if they are shipping with the 2006 OS, wouldn't particularly want to start with a new bit of kit and having my first experience being an OS update.