tjnitsche,
I was just about to list my N54 Cobb AccessPort (AP-BMW-001) but thought I would give you first chance since you are looking for it directly...
I bought it brand new when they first came out and used it on my 07 335i. I unmarried it before trading in my car. It works great and is in excellent condition. The screen protector is still on the AccessPort itself so it has no scratches whatsoever. I even have the box and the COBB stickers still!!!
I was going to post it for $700 OBO including shipping, but am willing to negotiate if need be. Let me know if you are still in the market, or if you want pics, more info, etc...
Feel free to shoot me an email or PM... I will probably see an email sooner since i'm not on the forums every day.
Thanks,
Josh
jrocky101@gmail.com