Last weekend when I camped out for a Wii (didn't want to miss out again) Toys R Us got in a case of Wiimotes and Nunchuks, and they said it was the first they'd gotten in about a month.
I suspected that the lack of product could be do to re-packaging with the updated wriststrap, but both the packed-in Wiimote and the one I bought had the original style strap.
Best bet? Buy Wii Play - I saw at least 25 copies yesterday on the shelf.