My last several phones all ran S60 - the Nokia N95 & N95-8GB, Samsung i8910, & Nokia E71. I loved the hardware, but Symbian has been getting long in the tooth. I've been using the Nexus One just a few days, but so far it is awesome. This is a great little machine with a powerful operating system behind it. I can't wait to learn all about the ins & outs of Android!