I think it came out in Jan 06 when they finally released some updated, unified drivers.
Yeah, I'm glad they switched to it, but its about time. No need for that 90's-looking crappy Creative programs anymore. The only thing I miss is the THX console. Audio Console doesn't seem to have any of those options. There's not even that much settings in it... I have no idea what made them want to make all these crappy, separate programs like EAX Console, SUrround Mixer, etc etc Plus you needed the original CD to install them then get the updates from the webpage, when a lot of Creative owners probably have their cards used with no install/driver CD.