Hmm.. interesting. Screenshot graphics don't want to render in the forum page, but do in the review section.
Yeah, agree re samrtphones vs. dedicated portable GPS.
A built in factory fitted nav system integrated with the vehicle engine monitoring and environment management systems might be a different story. Having said that, if they'd just give me usb access to read-only data from those systems it would be pretty cool too!
Android is apprently next cab off the TomTom rank.
In the meantime, I've been using a free app called Nav4All on my HTC magic.
At present it has a very basic interface and only a choice of about 8 english voices, (Male and female, Brit and american, as well as comedic versions of both)but it works very well.
The graphics are just arrows and symbols, but you can get a map view, the voice prompts have been spot on so far, it has contact list integration, favourites, driving syles., remember parking space, track and trace etc. etc.
The routes have been pretty good, although it doesn't know about some of the more recent additions like the Highbrook off ramp.
And it's free! Gui update is due in a month or two apparently.