I too had a PR 7 at iwebtool, unfortunately the rest of them all show 4. But how accurate is iwebtool btw?
I have a PR2 on my blog homepage! But I have to put back the TLA plugin otherwise I'm affraid they wont continue!
I haven't noticed any changes of the sites I have checked, a PR update normally affects lots and lots of sites not just a few, so it could just be a few changes from google rather than an actual update.
I am thinking it is a glitch in the data centers. I have one of my PR3 sites showing up as PR7 in one datacenter and one datacenter showing PR1 and PR0 in another. It has to be a glitch to be that far off. Maybe Google is working on something or adjusting something. It is still way too soon to see if anything is for real.
Just now I noticed my forum got PR2 and its main page got pr1 using seo for firefox. I check on seolog valid pr checker and it still show me pr0. iwebtool also show me pr0. hopefully the pr is valid.