Exclusive: Microsoft's dual-screened Android phone shoots for practicality and productivity. I didn't get to use it yet, but I spent time with a see-through, nonworking prototype to feel how it bends.

Exclusive: Microsoft spent five years working on a super-thin, dual-screen, hinged $1,399 phone to compete with Apple and Samsung. We got the behind-the-screen first look. Ian Sherr Contributor and ...