Welcome to WebmasterWorld Guest from 220.127.116.11
Seems mighty promising. Imagine searching a recorded files of a seminar, or the taped record of customer service reps. It currently works only in .wav files, but that's just a matter of time. And the price tag is rather hearty (5 figures) but that's also a matter of time.
Why not sound? I can see myself purchasing a "secure" telephone in the near future. :)