Finally, after a long waiting, 26th October Google updated Toolbar’s Page Rank, too. Why did I use the word too?
Because the real value of Page Rank updates regularly, each 2-3 weeks, while the Toolbar’s value updates rarely: the last update was in April, 6 months ago.
The prove of this fact is the substantial changes in Google’s rank of some sites, in some periods, due to this invisible updates, not supported by Toolbar update.