Buying Skype makes sense no matter WHO you are! Too many consumers/users already there! Great proprietary technology for voice, which equals intellectual property, video calling tech... Why wouldn't ANY company NOT want the top video chatting app on the market encompassing every OS on the market? If LTE voice doesn't pan out, MSFT could just make deals with carriers to share revenue and use Skype across the board. Already supports numbers, landline calls, etc. Did all the work for them...