You can go ahead and file this under “doubtful”.
I mean, if Apple just came out a few weeks ago with Steve Jobs’s opinion on how much Flash sucks, why would anyone think this is true?
Microsoft CEO Steve Ballmer will take a seven-minute segment of Steve Jobs’ Apple Worldwide Developers Conference to announce that his Visual Studio 2010 software will compile native Mac OS X and iPhone OS applications.
Microsoft CEO to get guest slot at Apple CEO keynote • The Register.