This is totally weird! You cannot use the word "Mac" as in Macintosh as in Apple as in the software company that makes expensive computers and mp3 players named iPods. A Mac software developer was informed by Google that he could not use "Mac" in an ad copy. It has been confirmed elsewhere by other developers.  No word yet on whether it is Google or Apple responsible for this. My guess would be Apple. Though I am a very happy Macintosh user, I am accustomed to Apple being anal in regards to its image but this is completely bonkers. I hope there are other reasons for this. And I cannot imagine this policy will stick.