This morning at an event in San Francisco, Microsoft announced the next version of its Windows operating system: Windows 10. Starting tomorrow, Microsoft will launch a Windows Insider Program that will give users who are comfortable with running very early beta software access to Windows 10. This first preview will be available for laptops and desktops. A build for servers will follow later. Microsoft says it is opening up this beta process to get more feedback from more users early on, but also noted that this will be a learning experience for the company and that some experiments users will get in new builds may not make it into the final version.