I call BS on that PR.
MS has their own license which is useless for most but…. themlselves.
In the past 5 years, they have attacked open source at every opportunity, through FUD, threats and lawsuits.

MS still claims that Linux is stealing 215 patents from them while refusing to answer which ones. Its taking a cut from Android sales from by threathening litigation.
MS loves open source done their way fortheir benefit.

And MS leader in chief still hasnt changed his stance of the fact that we users of Red Hat are stealing from them.

i could go on for a long time on what MS does to damage open source and all the self serving craptrap from Bill Milf, Sam Raimi and others wont change that.

heck, we could spend a whole year discussing the MS extortion methodology which they put into full gear after their Novell agreement. As a non-compensated individual hobbyist, it was exactly the kind of garbage MS supporters point to as their willingness which severely handicapped my work on compensated and non-compensated projects.

For all its faults and problems with privacy, Google is years ahead in its support of open source than MS will probably ever be.
As bad they can be with information, they do understand and embrace open source to an extent that MS never will because Redmond doesnt understand cooperation. In its world, even its partners end up getting in the rear eventually.

GitHub provides social code sharing features beyond what Git or Google Code provide, but please get your facts right.