Update: Adobe Photoshop CS3Beta has now been released: labs.adobe.com.
Adobe will be releasing the beta software of Photoshop CS3 in the early hours of this morning 15th of December (Pacific Standard Time).
The beta will be available on Macs, Windows XP and Windows Vista. The final release is set for Spring 2007, just in time for the new Mac OS X Leopard.
You can get the release on Adobe Labs.
Photoshop CS3 beta will include a pre release version of the next version of Adobe Bridge and a preview release of the new Device Central (to be able to test content and design for smaller smalls PDAs, Mobiles)
How do I get the beta?
Well Adobe have made it pretty easy for anyone on any platform to be able to get it, you need the serial number of an existing copy Adobe Photoshop CS2 or Adobe Creative Suite® 2 or Adobe Creative Suite Production Studio or Adobe Design Bundle or Adobe Web Bundle or Adobe Video Bundle. You must also register online at Adobe to be able to use the software.