Microsoft is planning to release a software development kit (SDK) that will enable Xbox Live integration into PC, iOS, Android, and Nintendo Switch. This will expand Xbox Live services to non-Xbox hardware and expand Microsoft's growing software services.
As reported by Windows Central, Microsoft is planning a GDC session next month where it will announce the cross-platform Xbox Live service. The listing says that "Xbox Live is expanding from 400 million gaming devices and a reach to over 68 million active players to over 2 billion devices with the release of our new cross-platform XDK."
Xbox Live's feature sets, which includes friends lists, Xbox Live achievements, and multiplayer, could become available on rival platforms should developers adopt it. And considering the popularity of Xbox Live Achievements, it might be worth it for smaller developers to add Xbox achievements to their games. Some mobile games on iOS and Android already support Achievements, but only games developed by Microsoft Studios.
Microsoft is putting a lot of attention to its software services as of late, with little regards to the old hardware boundaries. Microsoft already announced that it wishes to expand its Netflix-style Xbox Game Pass subscription service to every device, and its xCloud game streaming service could do the same. All this push seems to be towards Microsoft's desire to have more gamers get access to games. And if Xbox can facilitate that expansion then that probably isn't a bad deal for Microsoft either.