This service, currently free, transcribes a voice mail message that you leave on a toll free number and sends it to your e-mail inbox. The "My Jotts" can be set up in GTD categories as well. See the linked Seattle Times article or the website for more information. I am fiddling with it now, but I thought that I would share this tool with others.
http://seattletimes.nwsource.com/html/businesstechnology/2003535249_btinterface22.html
http://seattletimes.nwsource.com/html/businesstechnology/2003535249_btinterface22.html