Beta's of these have been floating around for a few weeks but they are now finally available on the MS site.

Performance and Reliability: http://support.microsoft.com/kb/938979/en-us

Compatibility and Reliability: http://support.microsoft.com/kb/938194/en-us

Only thing I can say so far is that copy/moving large numbers of files is much faster than it was.

OMG its about time

Nice when I reboot into vista later I will be downloading these, thanks for the links.

Then when you re-boot your vista install with be gone!