Whoa ... my first post here
Being short time owner of N900 and absolutely thrilled by this black brick of geekines.

I'd love to share with you my first hw 'hack' of N900. Actually it is more add-on than hack. But hack sounds more fancy

I've been inspired by this article:
The fisheye tin cam

This is what I did to my N900:


And few example snapshots:

You can see more pics in dedicated Flickr set.

Don't expect high picture quality. But hey, it's the "cheapest fisheye ever"