Can Microsoft's new phones save its mobile ambitions?

When Microsoft devices chief Panos Panay announced the company's new Lumia smartphones Tuesday morning, he showed a boundless enthusiasm for the forthcoming devices.He also had a message: Give Windows smartphones a chance. The folks in Redmond aren't blind to the fact that the worldwide smartphone market is essentially a duopoly with Google and Apple running the show and more than 90 percent of all smartphones running those two companies' operating systems. That's why Panay pointed out the rapid