Yes, you can still buy new ones. They are on the "4th or 5th" version of the 2nd gen supercharger. As stated above, Toyota of Dallas still has them fro sale, arounf $2600 new I think.
i was bored at work and looking if there was any left in the country at the local shipment centers. There is only four new ones left in the nation. Although I'm not sure how many dealers have the on the shelf