In addition to these major updates, the MacBook Pro has seen some minor enhancements, too: the entire lineup has dropped in weight, and all models feature a slightly larger trackpad than before, and they include a 'FaceTime HD' camera versus the iSight of previous models. http://www.tuaw.com/ take a comparison between the 13'' from 2010, see what the heck the changing. http://support.apple.com/kb/SP583 Size and weight Height: 0.95 inch (2.41 cm) Width: 12.78 inches (32.5 cm) Depth: 8.94 inches (22.7 cm) Weight: 4.5 pounds (2.04 kg) Up to 10 hours wireless productivity exactly the same with the updated one. but the battery dropped from 10 to 7. I dont know what is happening? let us look from another angle, the 15'' 17'' can have up to 7 hrs battery, why does the smaller 13'' have the same number? It always has at least 2 more hrs to go, what happened this year? What on earth does the pro line turn lighter and where does the larger trackpad come from?? and poorer battery life. I have no idea. anyone can educate me on that, please>?