Just to resurrect this one, the xls file in the file section of the reflector was actually updated in May this year, it may be slightly out of date as I know one or two were activated on the inner Hebrides by GM6MML, I will have to check up.
http://groups.yahoo.com/neo/groups/work ... nactivated
Basically though, the ones not activated since 2009 are in very remote places requiring /P operation, mostly on outlying islands.
However, as has been said, there's new people coming into WAB all the time and a lot will need any square, indeed many of the old hands will need them as a lot will have been activated only once, by a certain station who was very enthusiastic about activating the squares when we introduce the new scheme!
73,
Dave, G4IAR, Awards Manager