Starwood hotels new brand-aloft, a vision of W hotels, is offering Quadruple points for stay btw hotel opening to 12/31/2008. you need to register here
If you are Gold or PLAT and have SPG credit card, you will earn
2*4=8 points+ 2 Points for credit+1 elite bonus=11 points for each dollar spend.
Beijing has one aloft, I will try it later this year. However, stay at Beijing aloft btw Aug 1st-31st are not eligible for the bonus