Set it up this morning before work and played with it a bit on my N80 using wifi. Don't have a GPS unit at all right now. Seems a bit slow, but still usable. I think it crashed after trying to download the voice data for a turn by turn route. I wasn't looking the screen when it happened. I was somewhat surprised it was asking to download data for turn by turn navigation as I thought that was supposed to be a extra paid service...?
-Pete