Is Palm back? I say, “not yet”. Why? Because Palm’s latest smartphone, the Treo Pro, is using, arguably, the worse phone platform – Windows Mobile. The smartphone looks cool… it comes unlocked (Tri-band UMTS/Quad-band GSM), has a high-resolution color touch screen, built in Wi-Fi, GPS, removable battery, a microSDHC slot, and a 2-megapixel camera. Not cheap either at $550.