But attention! Photoshop CS3 cannot be considered a replacement of Photoshop CS2, since it is still not completed, besides you must be already a Photoshop CS2 licensed user to use it: in fact the beta version of Photoshop CS3 (only in English) can be downloaded and installed by anyone who signs up for an Adobe user ID, although to use it for more that two days you must enter a CS3 beta S/N. This may be your serial from Photoshop CS2, Adobe Creative Suite 2.x Standard or Premium, Adobe Production Studio Standard and Premium, Adobe Video Bundle or Adobe Web Bundle.
Apparently the main reason for releasing this beta version is to allow Macintosh users/customers to use Photoshop natively on the latest Intel based systems. This was also the occasion to enrich the CS2 with some new interesting features like non-destructive Smart Filters, enhancements of "Camera Raw", Quick Selection Tool, Curves Panel, Refine Edge, Auto Align and Auto Blend (useful for panoramas), Vanishing Point with multiple, adjustable angle perspective planes Black and White conversion; and a panel "Clone Source".
Photoshop CS3 beta includes also a pre-release version of a major upgrade to Adobe Bridge (a powerful, easy-to-use media manager for visual people) and a preview release of Adobe Device Central (an integrated tool in Photoshop CS3 software, enabling you to design, preview, and test compelling mobile content).
Photoshop CS3 requires for Windows 700mb to 1,5Gb on your HD, 512MB RAM (and 64MB VIdeo) and a resolution of 1024×768; and for Mac Mac OSX 10.4.8 or 10.5, 1 GHz PowerPC G4 or G5 processor, Intel based Macintosh. The interface has been restyled, with a single toolbar and a relocated palette in order to leave as much room as possible to the images you want to work on.
Photoshop CS3 is still an on going project, testers are welcomed to send ideas and suggestions to Adobe Labs; its forum is already full of interesting remarks. Another interesting initiative, that I strongly recommend you to browse through, is the Photoshop CS3 Learning Centre, containing several videos and tutorials explaining how the new features work.
The final product is expected to be issued in the second quarter of 2007, if you are testing it, I would like our readers to know about your experiences.