Audblog is an audio blogging service, allowing you to record an audio post from any phone which gets converted to an audio file on your server. I had the reverse idea a while ago, an RSS aggregator that would convert your favorite feeds into an MP3 file for listening away from the computer (oh LazyWeb...). Also, Audblog's Audblog-to-email would be interesting to use with email enabled phones too, basically giving you inbox-style voice mail without all that crazy complicated VoiP software in between. Right now AT&T sends me an email when I get a voicemail message at home, but what I really want is the damn message!
Bill hates audio for thinking, which I agree with. But Bill and I are here in New York, car free. Much of the developed world spends an hour or more in a car or on public transportation each day listening to something, why not their favorite authors' daily writing?