As it moves closer to the launch of Window 10, Microsoft is further tightening its focus, and has decided to sell some of its mapping technology to Uber.

As part of the deal, about 100 Microsoft employees will move over to Uber.

"We're excited about the talent and technology this acquisition brings," an Uber spokesman said in a statement. "Mapping is at the heart of what makes Uber great. So we'll continue to work with partners, as well as invest in our own technology, to build the best possible experience for riders and drivers."

Microsoft did not immediately respond to a request for comment. But in a statement provided to Re/code, Redmond said the sale is related to efforts to focus on its core business strategy.

"In keeping with these efforts, we will no longer collect mapping imagery ourselves, and instead will continue to partner with premium content and imagery providers for underlying data while concentrating our resources on the core user experience," Microsoft told the site. "With this decision, we will transfer many of our imagery acquisition operations to Uber."

As Re/code noted, Microsoft was collecting aerial, 3D, and street-level maps, while other data came from Nokia and partners.

But while Microsoft is ditching certain projects, Uber is expanding, and it's not just kittens and boats. Most notably, the firm has teamed up with Carnegie Mellon University to work on self-driving cars, early versions of which have been spotted on Pittsburgh streets. But you can't autonomously navigate roads without maps, and to that end, Uber last month was rumored to be in talks to acquire Nokia's Here mapping business.