Bill Gates' project at Microsoft rumored to be persalsonal assistant app

A few years ago I would have been skeptical, but in the last year I started using Office 365, was accepted to BizSpark, and bought an inexpensive Windows 8.1 laptop that is surprisingly nice to use.

I think that Google Now is interesting, and sometimes useful, but Microsoft might be in a better place to extend Office 365 to act as a general life assistant agent.

All that said, I would rather have an open source kit that I could modify, but for a commercial solution I would rather pay Microsoft for a life agent rather than get something for free from Google because they would need to monetize on my personal data.

Will it have a spellcheck?