I would keep looking. there are several dealerships with new 370Zs on ebay. and of course, if you read the 350 board all the dealerships are stuck with 370s they can't sell.
something doesn't sound right about that story. why would Nissan, who builds thousands of cars a year, need to halt production on one to work on another model year of the same car? unless there was a major problem with the 09's I just can't see it.
GOOD LUCK!! It will be worth the trouble and wait!