It's the same problem with Office. MS are using Office to help keep big business on a full MS stack - Windows, Sharepoint, Windows Server etc. And it's busine

It's the same problem with Office. MS are using Office to help keep big business on a full MS stack - Windows, Sharepoint, Windows Server etc. And it's business that really matters to Microsoft. If Office were to be split off, they would be more likely put it on all smartphones, Linux, write a better OSX version etc, but it could weaken Microsoft's position wrt its other products. It would probably be great for consumers if these companies took the attitude of making their products work best in a full stack, but still play nicely with everyone else's products, but they seem believe (rightly or wrongly) that it is in their own best interest to push for vertical integration and implicit or explicit lock-in.