Microsoft may finally have a winning ad format in its PR battle with Apple. Their latest ads, to air during the NCAA Basketball Tournament, focus on the price of a PC running Windows vs. the price of an Apple computer, the only thing you can legally run the Mac OS on. In these tough economic times, I think this is a solid strategy for Microsoft if you really don't have any druthers as to which OS you use, or are torn and are looking for a tipping point to help you make up your mind. However, I know ......