With just 15.5mm thick, the E-TEN X500 is the thinnest Windows Mobile Pocket PC edition phone so far. The phone runs on a 400MHz Samsung processor, has EDGE, 802.11b/g, GPS support, a 2MP camera, and Bluetooth 2.0 support. Sadly, there’s no slide-out keyboard. No pricing yet, but the X500 should be out in November. Visit Mobility Site to get more details.