Yes, there is a GPS antenna built into the Titan (Mogul/XV6800) according to the FCC photos. Sprint has publicly announced that this receiver will be activated along with Rev A sometime in 1Q08. Sprint quote: "Additionally, HTC is currently developing a separate ROM update which enables the EV-DO Rev. A and GPS capabilities that are already built into the Mogul hardware. Sprint and HTC plan to make this software ROM available in early 1Q 2008. We would also like to extend our thanks to those customers that have taken the time to identify and report these issues to us."

You would think that this would force Verizon to follow suit, especially since HTC is the one working on the ROM for the Mogul, not Sprint. If you want to talk a little history, Sprint release the AKU3 ROM for the PPC-6700 a month before Verizon released it for the XV6700. I would estimate that the XV6800 will get the GPS/Rev A ROM update somewhere between February and April 2008.