Only if you have a UY that is Aug, Sept, Oct, or Dec. If you choose a Feb, Mar, Apr, or June UY, you will only receive 2010 points since those months have already started their 2010 UY.
When you buy, what you are being given is nothing more than current UY points.
For new buyers, they sell it as an extra set of points by choosing a UY for you that allows them to do this. For example, my friends bought in February and were given a March UY so they would get 'double' points. However, they vacation in Feburary every year and I explained to them that having a March UY for Feb. vacations was the worst one, but to instead get it changed to Dec. as that would be better and they would still get the 2009 points. They did.