Online iPhone trackers?

[Slicktype]

I'm looking for the yearly online iPhone tracker.
I can't find a single one. I think last year I used something along the lines of itracker.com

Anyone know of any that are live?

Thanks,

 

[Nino313]

http://www.istocknow.com/live/

 

[Zimmy68]

That one is nice but it is Apple Store only IIRC.

 

[swamyg1]

So with istocknow, when exactly does this update with new info? Every store in the Bay Area is OOS for Pluses.