Microsoft will become a found member of the Mobile DTV Alliance, a DVB-H consortium with the end goal of enabling user to finally realise the dream of mobile TV i.e. watching tv on a mobile device.
Take a look here for the full article for more information. I currently own a Windows Media Plays For Sure device called a Creative Zen Vision which enables me to view recorded TV (from my Windows Media Center) while out and about but it would be great also watch live tv on something like a mobile phone or PDA using Windows Media as the platform.
I will keep an eye on this one and let you know if I hear more !