Maximum PC: Let's have a show of hands -- how many of you accessed Intel's AppUp center in the last week? Last month? Ever? We see a few of you out there, but not many, which is likely why Intel has decided to board up shop and move on to something else. The Santa Clara chip maker announced in a blog post that it's shutting down the AppUp center on March 11, 2014 so that it can focus on other things.