Lenovo Yoga Book Review

Introduction
What's your idea of the perfect mobile productivity device? Are you the type of user who can do everything from his smartphone, firing off emails in seconds with a deft flurry of thumb-taps? Or maybe you crave the functionality of a full-sized laptop, and accept the trade-off of having bulkier hardware to lug around?

Are accessories the answer? Maybe combining the portability of a tablet with the ease-of-input provided by something like a Bluetooth keyboard? Or does that angle just mean having one more thing to lose, not to mention keep charged?

Somewhere in the middle ...