Just did a google PR PREDICTION on my blog:
 

Results: Your current Google PageRank is 2. Based on our calculations, we predict your future PageRank after the next Google update will be 4, an increase of 78.06%.

(and I did it again)
Results: Your current Google PageRank is 2. Based on our calculations, we predict your future PageRank after the next Google update will be 2, an increase of 1.94%.

(and again)
Results: Your current Google PageRank is 2. Based on our calculations, we predict your future PageRank after the next Google update will be 2, an increase of 2.04%.

Looks like its having some problems making its mind.
Here is the link if you wanna try yourself.

That tool is a piece of crap. It did the same thing with one of my mainstream sites :1orglaugh

That thing is WAY off. It used to predict a pagerank 10 for a few of my sites a while back. Now I KNOW a few of my sites are going to 6, but this thing does not, apparently.

Yeah... looks like it

Visit www.myhotblog.com and PR7s are guaranteed*.

www.myhotblog.com has zero ads and has great features.

*but only if you 3X own pr10 sites.

piece of garbage puts out a diff % everytime

you CAN NOT predict google PR

Nice site what script are you using for the Multi-user blog function?

http://www.bloghoster.net/

If you wanna host blogs then this is great.... about $200 I think