We Were Promised Mind-Blowing Personal Tech. What's the Hold-Up?

A few weeks ago, I attempted to sit through Samsung's live-streamed Galaxy S9 smartphone launch event. I nearly fell asleep at my desk. Or the relocated fingerprint sensor, which is exactly what it sounds like. I realize this is a first-world problem, but in the 11 years since the release of the iPhone, advances in personal technology have gone from breakthrough to, well, pretty broke. What--and where--is the next revolutionary product, the thing that rewrites the rules and alters our lives forever?