Cloudyreason

Sign up for a free account at Ping.fm, and you will be given a unique phone number that you can call and speak your message to. It’s quick, it’s free!

The transcription is pretty accurate, although sometimes words do get changed. It takes just a few minutes to post to your Twitter account, and it also optionally posts a link to the original voice message. SpinVox and Ping.fm don’t just update Twitter, you can also link to and update almost 20 other social networks like Facebook & LinkedIn.