I guess I shouldn't have ended my answer with a question mark. It IS the fuel pressure sensor and you'll probably HAVE to get it from the dealer.
I just kinda figured I'd nudge you in the right direction. It's inline with the fuel rail, it has wires attached, therefore, it's the pressure sensor. Sorry for the confusion.
It's also on page 4-6 of the 2008 service manual. If you're going to be working on your bike much, I'd highly recommend picking one of those up as well while you're at the dealer.