so i had late 2008 MBP 15 unibody and now bought a mid 2012 MBP 15 non retina. all is awesome in comparsion, but only one things is really annoying. trackpad on newer model is more rough in use. seems like a different surface, not so smooth as on 2008 model, even colour is little different. i got my friends, who has one more MBP 15 late 2008 and MBP 17 2009. they all look exactly the same and have exactly the same smooth surface which is a lot better in use, while mine 2012 has even slighlty silveer color tint and the most important noticably not smooth in use since a first minute of use. yes i clean BOTH trackpads with some liquids and still no luck. can anyone confirm that it is normal and something i gotta get use to? totally disappointed as i really praised the trackpad on macbooks and this looks like a downslide in quality