Spinvox seems to offers what I am looking for since eternity. Already in 2003 I was talking to the guys of HP in Boston about that, but - at that time - they couldn't deliver what I was looking for: speech to text in natural environments.

If Spinvox can with the quality of a simple phone call, well that's really great. Congrats! Is this also possible with other languages than english?

By the way, Spinvox sounds quite familiar. Did they know about Svox (text-to-speech) or vice versa?

See also:
Russell about Spinvox
Mobile Crunch about Spinvox

PS: Sofar we at Kaywa with our partner can give you Phonecasting or Phoneblogging with a swiss phone number. You call a number and as you finish your voicemessage, it's blogged as an MP3 file and a Podcast. See an example here.
If needed we with our partner (not Svox) can also give you text to speech. So you can listen to your blog;)