About half-a-dozen Lumia walkthrough videos by Nokia showing browsing and searching the Web, driving and maps, music, contacts, etc. Other than the Windows Phone logo that appears at the end of each video, there’s no mention of the Lumia running Windows Phone. The only mention of Microsoft software at all is in the “Office and Mail” video, where they say: “This phone is the only phone with Microsoft Office mobile built in.”
If you didn’t know better, you’d think the Lumia was the only phone that had this operating system.