If you are checking out this blog then i am sure you already know that cs3 beta is available for download.
and you will be able to use it, if you have cs2, for two days. You are supposed to be able to have it for thirty days but something is wrong with the serial number generator.
I dont agree with this two day demo crap as this is only a beta version, missing alot of elements, and it will be us that are first in line to buy the real one when it hits the shelves.
You can see some very good tutorials at
that will get you into the new features.