What Smartphone should I buy?

ive just bought the sony ericsson XPERIA X10... brilliant phone! great at everythying you listed, even the touch screen for texting is good gives a qwerty keyboard... it operates on android technology so gets loads of great, and free, apps.. ive just got the sat nav app for free..and the gesture handwriting one which makes finding things on your phone such as numbers really quick and easy... Best phone ive ever had.