I had a clearprotector on my N900 and it was awesome. Nothing scratched it. So it had a very very slight grip to it. Nothing I would worry about. Anyway that N900 died and Nokia replaced it with a new one. I decided to try a Martin Fields. It cost more and while it looks even better than the clear protector (and that looked awesome) and it is probably even smoother than the screen itself, I am going to change it. It is hopeless as it is scratching like mad. It has only been on 3 weeks and already has marks all over it. They may have been good once but are terrible now. Looks great, lasts 5 minutes.

As for the case, I have an easecase off ebay. Brilliant case but I am thinking of switching to a folding case that stays on as I have almost dropped my N900 getting it out of its current pouch type case. Trouble is I have seen reports of the Nokia cp-408 rubbing all the paint off the bezel, so maybe I will look at an otterbox.