If they announced it's ready, then it's ready... however, I'm sure we will see some patches in the future, so I guess it's normal when we talk about Windows. There is nothing inside SP2 that you should affraid of. I said to myself that I will wait as long as I can, but I decided to install it on my spare system just to test it. It works peerfect without any single glitch. I couldn't find any of those programs installed on that system having problems with SP2, and believe me there is bunch of different programs, from graphical applications, designing software, music composers to professional dtp software... Few days ago, I installed it on my primary PC and I'm so happy everything works great...
Cheers !