Honestly, OSX / iOS is the counterexample for convergence. Apple has two different OS, two different application ecosystems, period. They simply saw Apple succ

Honestly, OSX / iOS is the counterexample for convergence. Apple has two different OS, two different application ecosystems, period. They simply saw Apple success, and adapted. The goal of every company now is to be the portable leader, and abandon the PC ship. It worked for Apple because they have never been competitors in PC space. The same for Google. MS is taking a long gamble, but they are the PC leader and have the most to lose. Going back to convergence: Google wants just a browser as the desktop OS, and that's not convergence at all, unless you think Responsive Web Design is convergence. Microsoft is the one doing something a little similar to Ubuntu, but their OS can't do desktop and portable/touch well at the same time. Or actually, their OS can do both, but it is designed in a way that no application can do both, and that hurts developers.