This is a fairly superficial question, but: tonight I dropped my N900, and off popped the back cover and the battery. The phone still works fine, apart from the window over the camera.

The window over the camera is now pretty rigid, and takes a bit of effort to open and close. I think the spring has been dislodged; I don't see an easy way to fix this.

So, are there any spare back covers kicking around?