I honestly hope so. Not because I refuse to believe the 21st century exists or because - well, not entirely because they extend the NSA's reach so much, but just because they sound so earthshatteringly bad.
The phone network isn't supposed to sound like that. Compare AMR, EVRC-B, and mu-law side by side sometime.
That being said, the PC has a level of flexibility that mobile devices really can't touch. If the PC really is dying, then I think it's a failure or a lack of interest from consumers to take full advantage of their capabilities.