Read the Code (Score 1)

David Weinberg tells a good story and it does see into an important future, but neither he, nor Reed, nor Blossom can program "any way" they want.

"An SDR, on the other hand, makes no such assumption. It is a computer and can thus treat incoming data any way it's programmed to. That includes being able to decode two broadcasts over a single frequency, as

demonstrated by Eric Blossom, an engineer on the GNU Radio project. "

Close inspection of the conveniently linked source code shows that it does not, as promised, decode two broadcasts over a single frequency. From the source:

Usage: fm_demo2 <freq1-in-MHz> <freq2-in-MHz>