Microsoft CEO Steve Ballmer may show up at Apple’s WWDC 2010 to showcase Microsoft’s Visual Studio 2010 that will give app developers the chance to natively work on apps for iPhone-iPod touch-iPad combo and Mac OS, Trip Chowdhry, Analyst, Global Equities Research, believes.

In his report, Chowdhry said Apple has reserved 7 minutes of the conference to have Microsoft give a presentation to the Apple audience. That presentation may be given by none other than Ballmer himself, or Bob Muglia, who runs Microsoft’s server and tools business, Barron’s writes.