Are the USA and Allies opting for a Soviet Style withdrawing of Afghanistan?
Not in 2010, certainly. But maybe in 2011. In my opinion, it depends on what happens in both A-stan and P-stan between now and next winter.

One thing is for sure: whenever the US + NATO pull out, whether in 2011 or 2021, Osama bin Laden, or his replacement, will declare "VICTORY!!".