Motorola may have once said that it was "open" to developing Windows Phone 7 devices, but it looks like that possibility is now a whole lot less likely than it already was. Speaking at Mobile World Congress this week, Motorola's corporate vice president of software and services product management, Christy Wyatt, said that while she would never say never, she doesn't envision Motorola using Microsoft's OS, and added that "it's not something we're entertaining now." Wyatt went on to say that "there were a bunch of things that we believed about Microsoft that ended up not being true, mostly ab