This is really interesting. FCC just passed a new HTC PG86300 well known as EVO 3D with AWS 3G bands ( 1700/2100) compatible with T-Mobile USA.
Just recently, HTC announced the availability of the new EVO 3D in Europe. As the original, it will feature 4.3-inch screen, dual 5MP cameras. Sense 3.0, dual-core 1.2GHz processor, 1GB of RAM. Really, the only difference here is the inclusion of GSM radio ( 850/900/1800/1900MHz for EDGE, 1700/2100 MHz for 3G), and a few cosmetic changes.
Probably this will be a new HTC 3D phone coming to the USA compatible with T-Mo 3G bands.
Stay tuned for more information.