I use a Blacberry Curve but I would prefer the HTC G1 (Google Phone). Sadly, I have a habit of dropping my phones and that is what I did to my HTC.

What stops me from using the iPhone is the lack of an actual keyboard. It gives me "the willies" to have to tap the screen. For the same reason, I have to use a laptop with a pointing stick (i.e. trackpoint) rather than a touch pad.