The upgrade went very smoothly.
The only odd thing was that on doing my frst tune up it found I needed KB892130 Windows Advantage Validation Tool, which I thought I would have had anyway to get OneCare!
It certainly was not an issue on the last patch Tuesday
Uninstalling and re-installing OneCare no longer seems to cause issues of incomplete uninstalls.
An already noticed oddity is that both OneCare and Acronis backups (hows that for belt and braces?) are always fragged and need more that 15 minutes to defrag.
I may be the first person in the UK to have Ver 2 