As you take a 30-second tour of your local AT&T store this month, the iPAQ Glisten from HP isn't likely to catch your eye; it's just another QWERTY smartphone without much curb appeal, after all. If you take a step back, though, this unassuming piece of gadgetry is actually quite interesting on a number of levels: it's just the third device to launch on AT&T with Windows Mobile 6.5 out of the box (though the Jack has been upgraded since it hit the market), it's got an AMOLED display, it features the exceedingly rare portrait-QWERTY-plus-touchscreen f