No, you can't multitask

At least not successfully. "Human information processing is insufficient for attending to multiple input streams and for performing simultaneous tasks." What a shock. Worse, the study in this article shows that texting and Facebook are crucial factors in lower GPAs, as compared to other multi-t distractions. Then again, it could just be that people with lower GPAs do a lot of texting and Facebooking (which may even be more telling!).