We all know that Google penalized lot of blogs in this PR update and you can easily see lot of bloggers just crib about the PR update. And strangely Google updated the PR 2 times in a period of 1 week.
My blogs were also hit by PR update and first of all Google dropped the PR of ReviewSaurus from PR 6 to PR 4 and then in the second update it reduced it to PR 3 
I’m perfectly fine with that coz my second blog TipsoSaurus got PR 5 up from PR 0 (called PRO 
)….so I’m not a PRO now 
Mayankgupta DOT com is still sitting at PR 4…so I’m happy about it 