Look for the terms of the agreement to be announced at the conference call later this month.
The tech giant is throwing all its weight behind new efforts to reclaim dominance in the changing computing market, where tablets and smartphones -- not PCs -- rule. At its launch event on Monday morning, Microsoft (MSFT) unveiled several new mobile features, but no phones that hadn't already been announced. Most impressive though, was the progress Microsoft has made with getting more developers on board. Windows Phone 8 will come with new, optimized Facebook (FB), Twitter and Pandora (P) apps. For the first time, it will also feature popular apps like Temple Run, Angry Birds, Urban Spoon and LivingSocial. According to the company, 46 of the top 50 apps will be available on its app store, which now has a total 120,000 apps.
"That's huge progress for us," said Joe Belfiore, manager of Microsoft's Windows Phone program, at Monday's event.