Well I have been waiting for this for a week or so now but looks like its here!
I had Major problems with CS4 and turns out it was because I didn't use the deployment kit (never knew about it)
So hopefully this will make the problems go away!
I have been following the run up on this blog by Eric Wilde
Anyway the link to the toolkit is HERE
I'm just going to have a play with it now so will let you know if I hit any problems etc.