The news became official yesterday, as published on the Swiftkey and Microsoft blogs. An extract from the Swiftkey blog:

We’re excited to announce an important milestone on SwiftKey’s journey. As of today, we have agreed to join the Microsoft family.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. Our mission is to enhance interaction between people and technology. We think these are a perfect match, and we believe joining Microsoft is the right next stage in our journey.

I must say that I could see this coming sooner or later (not that Microsoft specifically would buy it, but that one of the big players would do so).

I must also say that perhaps Microsoft is the least of all evils when it comes to this kind of things (remember what happened to the beautiful Sparrow app when it was acquired by Google?) If anything, at least now we will have Swiftkey on Windows Phone as well, which is one of the apps I was missing the most on the Lumia I own, having become so accustomed to using it daily on my Android phone.