Maarten Visser, the CEO of Meetroo and a decade-long Microsoft partner, stumbled upon the roadmap a week ago after clicking on a link posted on Microsoft's Dutch website. The PDF was not password protected.

"I'm always curious about the roadmaps," said Visser in a he posted yesterday. "For me, since we build SharePoint applications, the release of SharePoint 15 is an important thing. The better I know when this will happen, the better I will be to ready my products before launch."

Visser's is building project management software that relies on SharePoint.

While Visser noted that much of the information in the roadmap was already known -- that Microsoft will release a alongside betas of supporting products like SharePoint and Exchange -- he pointed out that the document pegged the suite's final release as the first quarter of 2013.

The roadmap's date for the public beta, however, doesn't jibe with Microsoft's recent comments.