Which are the best GPS phones in market?

Even if you already have some Mio GPS phones in the market, they are not generally characterized by their technical performance. And most of them do not even have 3G connectivity.

Something the company is going to solve the next year, with an improved model specifications, offering 3.5G connectivity, GPS receiver in addition to its own user interface, named Spirit and runs on Windows Mobile 6.1 Professional.
Will face the Nuviphone, a phone that also comes from the hand of a manufacturer traditionally focused on GPS navigation.

In addition to features like GPS navigation and Internet connectivity, the phone will come with a Mio camera of 3.2 megapixels with autofocus. It will be interesting to see these two phones face to face and to know more prominent in its functionality. So far, it seems that Mio will arrive before the market than the Garmin.