hey i'm in Aus so have the same issues with getting them, i ended up getting the 10.4 just coz it could fit

i believe you'll find they all only have a true res of 800X600, they just can support 1024X768 if u want it to do the dodgy lets squeeze more pixels in thing
they do however have versions that actully do run at 1024X768, but in the 10.4" model i was looking at over $100 more, and then it just makes finding skins and pressing buttons harder, and i pulled out an old laptop that could only run 800X600 and it looked ok and it was 12" so saved the money and went with the cheaper one.
i bought it through a company called automation electronics (in melb), which ended up being basically the same price anyway, but they were able to get the info i needed so it all worked out.
from my knownledge this one
http://cgi.ebay.com.au/Lilliput-8-4-...QcmdZViewItem# is the newest one of the lot
to a degree i wish i went with a widescreen aspect ratio screen instead, but i have nothing to fill the gap it woulda left, as my 10.4" screen fitted perfectally, i'm no longer driving that car so am concidering if i wanna buy a 7" screen for my tempory car...