So the new Zumo looks more like a Nuvi . . . too bad. But I guess we'll see what features it has when the 'push the button', so to speak and release the details.
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Edit: Just spoke to my friend, who distributes Garmin in Canada - he has yet to hear about it officially and in any case I don't need my bike unit before the middle-to-end of March or April (have a Nuvi 780 in the car), so I've ordered a Zumo 660 for when they come in.
It'll be thicker than a regular Nuvi (the Nuvi 550 is also thicker, because it is waterproof) and has a widescreen display and so it is physically larger.
Some features he expects:
1. powered mount, supplied with both car and bike mounts like the present Zumo 550
2. every software feature available in the present Nuvi units except voice control - including lane assist and building outlines
3. removable battery and long (8 hour) battery life
4. unfortunately, he expects it to have the TI Bluetooth chipset - which means that the old Zumo's Bluetooth is likely to be better than the new one's.
5. watch for prices on Zumo 550 to drop - the 450 was discontinued a month ago.
6. he expects this model will accept all of their maps including topo and marine - it has an SD slot
7. faster processor
One benefit to the new Zumo is that it will fit nicely in your pocket where the Zumo 550 was a pig - thick and not a rectangle.