The five coolest tech products that should have arrived in 2018 but didn't

The last 12 months were filled with ground-breaking products. We saw in-display fingerprint sensors break into the mainstream, the world's first foldable displays in action, and crazy leaps in cameras and computational photography, all on devices small enough to fit in a bag (or a pocket). But among all the great things we got, there were a few things that didn't make it--products and features that were promised in 2018 but won't be arriving until 2019 (if at all): At this point AirPower is the stuff of legend. Announced alongside the iPhone X in 2017, it was supposed to be the first pad capable of charging three devices at once (namely an iPhone, Apple Watch and AirPods). In fact, the only indication that Apple is even working on it was an accidental mention in the quick start guide inside the iPhone box this year.