Meet the inkReader Duo: a dual screen E Ink Reader Concept, that redefines productivity. Just a concept for now.

This affordable flagship phone sports a sleek design ... operate in desktop mode with an external monitor, and supports LG Dual Screen, a flip case that adds a second full-size screen.

LG Electronics has unveiled its new dual-screen smartphone called Wing with a rotating form factor that boasts enhanced multitasking features. The main screen will have a 6.8-inch OLED FullVision ...

That's not to say that the phone is bulky when using the dual-display. While we haven't used the phone in an everyday setting yet, there seem to be many times where a second screen would be welcomed.