Tiffany,
I’ll work on a list of the models. I actually had one at one point but realized there were so many more than I realized.
For the most part, there is some commonality among some of the models. For instance, if there’s a P at the end of any model it merely means that it has Windows XP Professional installed instead of the more common Windows XP Home Edition.
From what we know so far, nearly all TRs can be upgraded to the same specifications. We know we can add bluetooth, add upgraded wireless, add dvd burners, upgrade to 40GB (for TR1 users) and max out the RAM to 1GB. The only thing we can’t change is the processor. So, TR1 owners will have to stay at 900Mhz while TR2/3 owners get 1Ghz. Other than that, they all have the same basic “guts” inside.
I’ll see if I can put something together that shows all of the known models and what region they’re from.
:D