It is hard to tell fads from the real deal these days. There's rarely a Grand New Idea with no downsides or tradeoffs, and those promoting such ideas usually ha

It is hard to tell fads from the real deal these days. There's rarely a Grand New Idea with no downsides or tradeoffs, and those promoting such ideas usually have an agenda. It's rational to let somebody else be the proverbial guinea pig. As our systems become more complex, the tradeoffs are also more complex such that the low-hanging-fruit of obvious benefits are mostly all picked. A folding (two-screened) phone sounds like a good idea in theory, but whether they can be made reliable and if there is or will be enough useful software for them is still unknown. I'll wait it out... I waited out the 3D TV fad and am glad I did. My grumpy geezerism paid off there.