Officially, NO. But like many answers already stated, they do share a lot of interests, and are very happy to partner with each other in many goals and ventures. I personally thinks it's almost at an embarrassing level...

Many people also think that because of this tight relationship, Microsoft is in, and Apple is out. But companies never trade with such a black-vs-white attitude. That's just a kind of sensation that media like to create from it. When companies see a possibility to team up with each other for some project or endeavour, they will gladly do so.

Oorspronkelijk geplaatst op Quora: Is Adobe owned by Microsoft?"