Robert_Charlton - 6:30 am on Jun 18, 2007 (gmt 0)

is the update over, or is it still going on? Any insight?

Old data and duplication generally indicate an update in progress.

Seems to me I remember a noticeable data rollback during the infamous Florida update, when Google apparently wanted to assess its new algo on a known set of data... at least that was the assumption.

I don't know whether that would apply here or not, as in the areas I watch I'm not noticing the old data.