What's with the sharp corners near the trackpad?

I'm coming from a late '06 2.33, so I don't know at what point unibodies started exhibiting this trait, but it's a strange (and annoying) design decision to me, to have sharp corners at the indentation where you pull the screen/lid open. That's exactly where I put my wrist when I'm just using the trackpad to surf or whatever (i.e. not in two-hand typing mode). Is this new to the Arrandales?