MacRumors.com

Blogger user "Reality Resized" has posted what he/she claims is a video of Mac OS 10.5 "Leopard" in action. The video is relatively short, albeit longer than fake Video iPod mockup movies that have surfaced over the past year. Notable depictions in the video are a tabbed, solid-metal Finder interface, as well as what appears to be slightly more system menu selection effects.

The demonstration was run on an iMac G5 1.6 GHz with 1.25 GB of RAM. While the movie is certainly more promising than last week's fake screenshots, there is no hard evidence that the movie is legit and MacRumors cannot independently verify its authenticity at this time.

In case the link goes down, 3 MacRumors mirrors have been posted, and a YouTube version is now available. [YouTube] [1, 2, 3]

Credit to Leopardtracker.com for discovering the video.