I do not like this article one bit. The main reason being that it assumes you are using an emulator for all your screenshots. I own a mac and a pc, but I'm not allowed to put an emulator on the pc and there are no emulators for the mac.
Overall, I believe this article is severely flawed. I looked at it so maybe it could tell me how to make animated screenshots. What I got instead was someone who foolishly assumed I was using an emulator on Windows (you know he's assuming I'm using Windows when he talks about using Print Screen and doesn't tell you how to do it on other OS's). This page should be called Taking Screenshots From an Emulator.