The barfight is over, MicroSoft. Clear your head!
This move could have made sense when they were in the midst of the Long/Goodman commercials and were fighting for OS mindshare.
But that was then and this is now. With laptops and portable devices being where all of the action has now gone to, and desktops slowly moving into a niche area (actually, galloping into a niche market, but this reality always seems to push buttons for readers), then Microsoft's ban seems rather pointless. I could see it if they had said that they want their OS being used on whatever gear is out there though.
I see Microsoft as that entitled, drunk and obnoxious Business Major, staggering in the bar all night looking for a fight, convinced that his trust fund is some sign of his superiority, and finally has been schooled by the young hip software/hardware design double Major student (do I have to say it? Apple). As the groggy, overweight braggart gets back to his feet, only now starting to realize that not only did he lose, but that the fight has been over for a while with everyone relieved that he's out of the picture, with their backs to him all enjoying a drink with that hip guy at the bar. Hurt and despondent, he yells out "I forbid my family or my servants from drinking with you", but isn't heard over the laughter and cheer at the bar.
Sad, really.