+1
I thought it might have been a placebo effect, but so many people have now mentioned this about the 2011MBP 15" being snappier, I also totally agree.
My 2010 MacMini on the other hand still has slow gfx/video. This was the case with SL and is also the case on a clean install of Lion, now with 10.7.1
The nVidia chip in the MacMini 2010 sucks.
I have an early 09 mac mini and it has a nVidia graphics. I never had a problem with it till Lion. Now things are slow I think they could easily fix this with a nVidia firmware update or updated driver. It's far more than capable of doing these minor things smoothly. Of course they like to make us suffer if we aren't using the newest of the newest. I find it ridiculous that the early 09 machine isn't supported for "airdrop". Makes no sense.