No big secret, I got an email on the 13th from BlackBerry telling me there was an update for my device. In the past i've shied away from these as they cause more problems than they resolve but the last three or four have brought improvements. So I fired up my Apploader and applied it and so far v4.5.0.180 sucks
Maybe they are trying it out on unsuspecting English people, guess its not that easy to revert back is it?