My colleague just got the new HTC HD2 phone ordered from Hong Kong. It's not available in Australia yet but can be bought online for about Aud900.
It has fantastic specifications under the hood including a 1ghz Snapdragon processor, huge screen with multitouch and a great camera.
Size wise it is slightly taller than the iPhone but it's thin and all screen. Definitely worth considering instead of the ubiquitous Iphone down under.