I have the N82 and find the two together are excellent....I also have TomTom on the N82 so now I only have two devices vs. the six I used to carry, GPS, ipod-music, Treo, Razr, ipaq, laptop for video and wireless tools,,, the N82 is awesome and while the music/video/e-mail/GPS is also on the N810 I can go between the two to maximize battery usability.

In my 2007 Prius the Treo kind of worked, the Razr better - no battery indicator/poor battery life - the N82 does it all PLUS I can have many Bluetooth items connected at the same time and seemly transfer between them with great battery life...