HTC today announced the S743, a version of the S740 with support for US 3G networks. The phone is a non-touch Windows Mobile 6.1 Standard device with a bar form factor and numeric keypad, plus a slide-out QWERTY keyboard. The phone features a 2.4-inch QVGA display, 3-megapixel camera, memory card slot, WiFi, GPS, and 528 MHz processor. Network support includes HSDPA 7.2 in the 850/1900 bands - suitable for AT&T’s 3G network - plus quad-band GSM. The S743 will be available through independent retailers such as dell.com and cdw.com later this quarter.