Ready to see another commercial featuring the Nokia Lumia 900 today? Good because we've just spotted a fairly new AT&T commercial that's been making the rounds on television and the web. The 30-second spot is actually a generic one for the carrier, touting their support for mobile to any mobile minutes in some of its calling plans. However the Nokia Lumia 900 is indeed featured in it (and yes, the girl is actually using it in the video), so it appears AT&T wasn't kidding when they said the device would be their 'hero' handset. Isn't it exciting to finally see a Windows Phone featured in a boring carrier commercial?