Details of the upcoming Inventec Mercury have surfaced on the FCC web site. Details have not been confirmed by Inventec but it looks like it will be a dual-band phone (850 and 1900 Mhz support) with integrated keyboard, GPS (a single mention in the user manual), Wi-Fi, Bluetooth, miniSD slot and a 2.8-inch QVGA screen. It will run Windows Mobile.
Lots of pictures are also available.