In my opinion, the screenshots at least have
some credibility. This seems too similar to last year, with everybody discrediting the screenshots.
The dashboard would be awesome for me. I have been looking for a nice application similar to this, such as Stattoo and the new version of Konfabulator.
From what I see, the dashboard looks mighty suspicious, though. The "iTunes is not running" seems too similar to other widgets. What is more apple-like would be to automatically detect if iTunes is running, and display and hide the widget accordingly. As for the colors, I believe it is the continuation of Apple's color-coding effort, started with Panther with coloring of files and folders in the Finder. This might allow for customization of colors, or just an easy way to identify different widgets. (Keep in mind that Apple also went back to color for the iPod mini).
If this is a hoax, it is a very well-planned one. For the minor details like the creator application of the screenshots, I believe that is a detail that couldn't be accounted for, which adds much credibility to the project.
Other people also mentioned the different Quicktime icon, and other minor details that are easy to overlook in the design.
I guess we will just have to wait and see. I suggest that everybody should place their bet on
Fly on the Mac.