Sorry to hear that Wildcard - read my madness moment at http://forums.digitalpoint.com/showthread.php?t=437613. . . .
That might just be a temporary hiccup (I'll keep my fingers crossed for you) As far as UK update .... I haven't noticed anything yet either
I think that many of us have seen the Hickups in PR as alot of times it bounces back but this update is acting a bit different then the last few but then again, they always change something!! I have a couple of sites that lost the PR too but I am not worried yet I guess!! My only one UK site has done NOTHING so far!!, to answer your question.
My http://www.businessdirectorylondon.co.uk has not changed yet. Hoping to see higher PR soon. Good Luck to all!
In the past few updates I have noticed that toolbar PR updates about a week later in the UK than in the rest of the world