I tried mapping on the N810 I bought for my 2 year old to play with. GPS was very slow to lock, not sure if it ever did. The mapping application was terrible. I am sure the N900 app will be better but from what I have read it will be a big letdown compared to Google Maps or OVI 3.0 on my E90. My N900 should be delivered tomorrow. I will update this post when I have had a chance to try the maps.