Couple of issues for me to comment. (with comparison to SE Kseries)
1. N82 cannot charge through USB cable. K8** have option.
2. I think the SE Music player is functionally better but N82 got more equalizer customization.
3. Hate that Nokia flash intro.. its SO OLD!..evensince my 6600.
4. Higher learning curve than K850i on navigating the menus. Its a lorry load of lot more features than my old 6600 phone.
5. N82 battery life NO match with Kseries!.. confirmed by good buddy who plays with phones all the time. Nokia should have put in a higher cap battery.
6. Should have included a task manager to see what apps are still running in background, or have I missed it.

I just upgraded to Nokia Maps 2.0 from Nokia website, including updated maps for Malaysia/S'pore. Maps 2.0 is so much improved.
I'm still pondering whether to install or officially buy Garmin Mobile..BUT, I think I'll stick to my Garmin Nuvi for time being,..no damn phone beats the real thing!