Update: Adobe's John Nack has further clarified CS3's compatibility with Snow Leopard. He states:
"It turns out that the Photoshop team has tested Photoshop CS3 on Snow Leopard, and to the best of our knowledge, PS CS3 works fine on Snow Leopard."
So it would seem that at least one CS3 app works normally.
Our story, as originally posted, is below:
The company recently released a detailed Q-and-A PDF that details the compatibility of its various software offerings with the new version of OS X.
The PDF discloses that after conducting a series of tests, Creative Suite 4, the latest version of Adobe's design software package, works on Snow Leopard without the need for any updates, with only a few minor issues in place.
But it wasn't clear whether the older CS3 package would work on Snow Leopard. Adobe simply stated in the Q-and-A that "Older versions of Adobe creative software were not included in our testing efforts." Following that quote a number of sites instinctively belived that this meant that CS3 software would not function on Snow Leopard.
Adobe have since updated their original blog post, to offer some clarification on the issue. John Nack states, "No one said anything about CS3 being 'not supported' on Snow Leopard. The plan, however, is not to take resources away from other efforts (e.g. porting Photoshop to Cocoa) in order to modify 2.5-year-old software in response to changes Apple makes in the OS foundation."
Adobe still has not said outright whether or not CS3 will work, but users can find out for themselves come Friday when Snow Leopard hits stores.