Has anyone had (or know someone) with experience with the new Sony 660BT or 770BT head units? I'm looking at a package deal with the 660BT for about $600 that includes Bluetooth, a backup camera, Tom-Tom navigation and one-wire iPod (and USB). The 660 has a slightly smaller screen (6.1" versus 7") than the 770, but it has a real volume knob and it's also slightly cheaper. I don't think there's much else different about them.
I know the PAC steering wheel adapter work with it, but I don't know if the BT controls are supported with this HU or not.
Reviews on Amazon sound promising, but I've read that the GPS can stop working after a few weeks if you don't update your maps (that sounds insane to me and more like a way to try and force you to eventually buy map updates than anything else since only 1 year is included and too bad if you're on a trip and can't update. Really, if it's true then it's a dealbreaker, IMO).
Edit: Further searching has revealed the GPS satellite tracking issue is more likely to be a firmware bug. Supposedly a reset button on the NAVI unit restores it to working order (updating maps just happens to do it also since removing the map module and reinstalling it also resets it).