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.