There has been no official announcement, but I am here to tell you that at some point before the sun rises on most of North America, the free public beta of Photoshop CS3 will be available on the Adobe Labs web site. That’s a free beta – something that, if you know anything at all about Adobe, is freaky in the extreme.
Free beta. I feel like I cannot possibly repeat it enough.
Anyway, keep looking until it arrives, and grab it quick when it gets here … there is no telling how long it will be available. Note that you have to have a valid serial from a current or mostly-current version of Photoshop or one of the many Creative Suite releases to make it go, but acquiring one of those particular serials should not be something that you find overly taxing.
While you are there, the Adobe Labs site is really worth poking around on – some of the stuff (like “kuler”) is really quite swank.