The Galaxy Note will be announced this month, but the shipment will be probably in October or November. Some regions and some carriers will start to sell it even later.
The good thing for users who want to grab one now is that the price should start to drop considerably probably before the announcement.
I remember the launching price for Galaxy Note on ATT is $299 with two-year contract.
Probably it is good time to grab one if you can get it free now, if you are happy with it. Actually , Jelly Bean (4.1) update for Galaxy Note is on the way (Q4/12-Q1-13) .