Aside from my 2011 MBP trackpad not feeling nearly as smooth and glassy as my 2008 unibody MB, I noticed today that the 2011 MBP trackpad allows me to have up to four fingers contacting the trackpad without recognizing any gestures. My common problem is example 1 below where I am mousing and go to scroll with two fingers, but the trackpad doesn't recognize two fingers and the page does not scroll. For example: 1) While mousing with one finger, bringing second finger into contact with the trackpad does not trigger two-finger scroll (despite contacting trackpad with two fingers simultaneously does). 2) While mousing with two fingers (as initiated in example 1), and triggering no gestures, bringing a third finger into contact does not trigger three-finger back/forward function (despite contacting trackpad with three fingers simultaneously does). 3) While mousing with three fingers (as initiated in example 2), and triggering no gestures, bringing in a fourth finger in contact with the trackpad does not trigger four-finger expose features (as it normally would when four-fingers contact trackpad simultaneously. I do not experience this with my 2008 unibody MB, but can easily accomplish this with my new 2011 unibody MBP. Is this a bug? Is this a trackpad change?