Cingular Wireless will soon release two highly-anticipated Windows Smartphone, the Hewlett-Packard (HP) iPAQ hw6900 and Cingular 3125, aka theHTC Star Trek. This according to a leaked rebate form published on Mobility Today.

The form, which includes a list of many other Cingular supported handsets, confirms what many have assumed for long time, that the GSM operator would be the first home in the U.S. for these devices. It also indicates these two smartphones will be available soon with rebates for a 2-year commitment: $50 for the iPAQ and $100 for the Cingular 3125/Star Trek.

iPAQ hw6900
The new Pocket PC Phone (see our First Look here) looks very similar to past HP Mobile Messenger offerings like the hw6515—same square 240 x 240 pixel resolution, 64k color 3-inch display and a QWERTY thumb-keyboard, for example—but it has something past iPAQ phones didn't, four types of wireless networking.

There's Quad-band (850/900/1800/1900) GSM voice for those who travel abroad, GPRS/EDGE (Enhanced Data for Global Evolution for high speed cellular) for data services, GPS for location and navigation-based applications, Bluetooth for headsets and other personal area networking accessories (like printers), as well as Wi-Fi: the new kid on the block of the Mobile Messenger series.

As with the hw6515, the new iPAQ's dimensions and weight, at 4.6 x 2.8 x 0.7 inches and 6.33 ounces, are more PDA-like than phone-like.

HP moved this Messenger up to Windows Mobile 5.0 with support for the Exchange Security Feature Pack and Direct Push on-device client, putting BlackBerry-like mobile messaging front and center for the hw6900. It also works with Good Technologies GoodLink push e-mail and data synchronization service.

Inside the new iPAQ is 128 MB of ROM and 64 MB of RAM (45 MB of memory available to the users, down from 55 MB in the hw6500) plus a 416 MHz Intel XScale processor, up from 312 MHz in the previous model. Unlike the hw6500, HP didn't go with two expansion slots. It nixes full-sized Secure Digital cards, leaving support only for the miniSD variety.

As with the hw6500, you can snap pictures and take video through the Pocket PC Phone's 1.3-megapixel camera, which has a flash. The Photosmart compatible camera enables users to capture and share photos and videos wirelessly.

Like past iPAQ phones, there will be a version of the hw6900 without a camera for security conscious enterprises. Cingular is going to sell two editions, the hw6920 and the hw6925. It isn't known which has the camera.

HP rates the new iPAQ's 1200mAH removable battery for 4 hours talk and up to seven days standby time.

HTC Star Trek/Cingular 3125
Less is known about the Star Trek/Cingular 3125. The Federal Communications Commission only recently approved HTC's ultra-slim Windows Mobile handset for sale in the U.S. It is supposed to be the thinnest clamshell Window smartphone yet, at only 0.6 inches thick when closed.

The quad-band GSM/EDGE Start Trek, designed to compete with the likes of Motorola's RAZR, also sports a 200 MHz TI OMAP 850 processor, Bluetooth 1.2, microSD slot, 1.3 megapixel camera, 64 MB of flash memory, a 2.2-inch 240 x 320 (QVGA) pixel resolution display, and an external color display.

It is already shipping in Europe and Asia.