You cant...The macbook pro, I know because I asked the guy about a palmrest protector. This lead to me asking if it was SR or not, and he mentioned that it had ati graphics, so that is pre-sr. And for the macbooks, its obvious because I saw them weeks before the macbook refresh occurred.
I use mine in school a lot, and I've brought it to the on-campus coffee hang out once. Other than that, it stays in my room or goes with me when I go back home or to my boyfriend's house because he likes to use it too, haha.