Though it appears that they took a page from the Nextel playbook with the "Done." comment, it speaks the truth - Windows Phone 7 Series has been shortened to "Windows Phone 7." From Windows Mobile, to Windows Phone, to Windows Phone 7 Series, to Windows Phone 7, it appears that they've settled on an official name. For now.
My thoughts? Not a huge change, but more concise and easier to remember from a consumer perspective. What say you? Easier to remember, or bad marketing move? Hit the comments and let me know!