Amazons got a at least one smartphone up its sleeves, and we know its going to feature some curious 3D effects thanks to a slew of sensors and a quartet of front-facing cameras. Thats not all she wrote, though: previous reports alleged that users could tilt their Amazon phones to and fro to interact with apps, and BGR claims to have more dirt on how that feature works. If true, tilting an Amazon phone could be one of most important things you could do to it.