It looks like AT&T has sprung a very big leak and EngadgetMobile has slowly been revealing its future lineup for the rest of this year.  Fresh off the print is the LG GW600 HQ, a likely pair for the non-QWERTY aficionados.  The device sports a wide candybar style and has a 20-key layout akin to BlackBerry’s SureType, which would be a great alternative to Samsung Jack’s full QWERTY keypad.  Other specs also seem fine for a Windows Mobile 6.1 device including triband 3G, microSD expansion to 16GB, and a touchless 320×240 display.  AT&T has set July 6 as the date to unleash this smartphone, so if you haven’t bought the Jack already, you might want to wait it out a bit.