They had changed the default for the scale tool but switched it back in the first service pack. If you're talking about not being able to scale after certain operations I've run into that too, I think it has to do with the new pinning system and durring some operations verts get pinned but not visually updated and there is…
I've gone back to 2009 and its missing a lot of stuff I've come to rely on. The only way 2009 works for me if I install polyboost (which I do own) to get things like swift loop, geo poly, paint connect, set flow, Conform Brush and retopo, all things I really miss. I also have to install Soulburn Scripts (free) to get paint…