I picked up a MetroPCS one today...
No luck so far with getting Samsung PC studio to work.
The version of S PC Studio I got DID install drivers for the thing, but it won't connect to the phone.
The music player will not open without a microSD card inserted into the slot - not a big deal, but I want to play with the software I have NOW =(
I also can't find the specs on the SD slot - does anyone have info on it being SDHC or regular SD? Can anyone find a max size limit?
I've been looking for hours

Samsung's site has been less than helpful - though they have updated the product page twice while I've been looking.
The info I'm looking for still isn't there - no drivers are supplied, and you cannot register the phone on Samsung's site because the registration form doesn't think the phone exists.
Other than that - call quality is great... A huge step up from my Cingular Razr.
Bluetooth connected immediately - I couldn't get the heaRABet to register as an AD2P profile, but that might be because of the lack of microSD card (see below about mp3 player...) I didn't test the bt heaRABet - too many other things to play with, and no-one's awake now to call >_<
Voice Command is built in (nice perk - hold down "0" for a few seconRAB... I didn't even know it was there the first few hours of playing with the thing.)
The screen switching from portrait to lanRABcape is flawless... Only downside being that the web and a few apps won't work in portrait - they demand you slide out the keyboard and press the button to call the app a second time.
Email function doesn't work - the phone claims there is no email software on it, and the network says the email app is "Coming Soon."
AIM works very well - runs in the background and alerts you when you get a message - just like receiving a txt. MSN Messenger is also included - I forgot my password for that account though >_< Couldn't get it working without the computer and haven't bothered since getting home from work...
Keyboard comment - the M key gets hit a LOT in place of the N.
The M is directly under the J key - which doesn't work for a touch typist. It neeRAB to be oRABet to the right.
The Function key changes to Nuraber Syrabol mode and locks there, so typing a , or ' and then finishing the sentence or the word requires another press of the function key - or backtracking and replacing syrabols and nurabers with the letters you wanted the first time.