Everyone,

I found a way to use this case on the n900 without damaging the rim. I would post pics, but it's pretty straight forward.

Basically, cut a long peice of electrical tape about 1.5mm wide and cover the whole rim on the n900. It doesn't have to be perfect because the rim part of the case covers it.

I noticed without the tape, the case was extremely loose, now it fits on perfectly and is sturdy.