Nokia has noted Microsoft's announcement of Windows Phone 7.1 (aka Mango) with word that the software being demonstrated today will be the one we'll see on the first Nokia with Windows Phone device. That's singular, not plural, indicating that Nokia might start off with one phone and work its way up. It also slightly contracts the roadmap for the first handset born from the Microkia partnership, though Nokia's statement makes sure not to make any promises about when said device will show up. Finally, we find the "Nokia with Windows Phone" phrasing somewhat peculiar, don't be surprised if you see it turn into a branding strategy for Nokia's smartphones going forward. Here it is, straight from Nokia Conversations