I know there was a thread about this but I just wanted to let everyone that didn't see it know that the edges on the 2011 MBP are not as sharp as the 2009 MBP. It's very noticeable and feels way better on my wrist/arm area. I can actually just look at the two and tell the difference, and it also seems that with this type of design that there won't be as much of the aluminum rubbing off of the edges over time as well. After a while of typing, browsing, school work, etc. on the 2009 I began to get irritated and I've already been doing so for about 3 hours on my new one and I'm not getting that same feeling. Really didn't think it would make that much of a difference but it has, at least for me.