Acer's DX900 and X960 WinMo smartphones, WinMo 6.1-based DX900, which really isn't much of a looker but packs the powerful punch of twin SIMs underneath its homely shell. Most dual-SIM devices top out at EDGE, but the DX900 takes it to the next level with triband HSDPA on top of quadband EDGE; you've also got a 2.8-inch VGA display, WiFi, 3 megapixel AF camera, and GPS, so if you're a two-line kind of individual, look for this one now around Europe and Asia. Next, the X960 ups the ante with HSUPA and 7.2Mbps maximum on the downlink, a revised 3D user interface, and a 3.2 megapixel cam