More than 100 times faster than WiFi? suggests that chips transmitting wirelessly in the 60GHz spectrum, where waves are milimeters long, would be a practical replacement for Wi-Fi, or other forms of wireless transmission.
I think the advantages here are high, but over very short-ranges — feet or yards — given the relatively low penetrating power of radio waves at frequencies that high. But… I dunno. My RF understanding grew up on waves ranging in lengths from towers to tonsils. Could be this new stuff has a lot more promise than I’m ready to guess.