I was introduced yesterday to Copytalk, a transcription service based in India that records up to 4 minutes of voice, transcribes it, and sends it your or any 4 email addresses you want the same day. (It's $50 a month.)
Although I use squarespace to host my blogs, I'm aware and have used email to post remotely to blogs.
This service would allow Paul Allen to forego his cherished blackberry and shrinking thumbs and just speak into his phohe and see a new blog post appear. I'm quite sure that almost anyone can speak faster than they can type.