EDIT (May 19 2011): I've now developed a Symmetry Photoshop Action which you can apply to your own images to replicate this mirror effect: [link] (and also [link] for flipping on the other side). Both actions should work on any image of any size allowed by Photoshop.
--- Thank you for visiting If you like my work, you can also support me by checking out freestock.ca
[link]
It's pretty nice by the way.
You have been daily featured here [link]
Many thanks for the wonderful stock