While HTC is enjoying the successful release of the HD2 over at T-Mobile, they are also sliding another Windows Phone past the FCC. The phone is identified as "PB92100" and is described as a Windows Phone throughout the FCC documentation.
As is customary, HTC has requested the FCC hold the specifications and images of the "PB92100" confidential. So we are left to speculate what this phone could be. We know from the FCC documents that "PB92100" has GSM/EDGE 850/1900 bands, Wifi, and Bluetooth (narrows it down a lot, doesn't it).
There is some speculation that this could be a Windows Phone 7 Series device but HTC has been relatively quiet on the whole WP7S topic. It's also awfully early for a WP7S device to land at the FCC.
Could it be the HTC HD Mini? The HD2 headed to another wireless carrier? Or maybe the "fact or fiction" Trophy? Only time will tell and we'll keep you posted if more is discovered on the HTC "PB92100".