All those who were angry on Sunday, please calm down. Despite the fact that the sales force and the computers seemed to think it was a one-week promotion, that price drop to $99 for the Palm Pre on Sunday was nothing more than a glitch. The confusion began when a picture of an in-store banner promoting a week long special of a $99 Pre with a 2-year contract was posted online. While it turns out it was a mistake, and announced as such via Twitter by Best Buy marketing manager John Bernier on Sunday afternoon,