TwitterFone is free service that lets you update your Twitter feed using your voice from any mobile or cell phone. You call it, speak your tweet, and hang up. A short while later, your tweet will be posted on Twitter. Magic! TwitterFone is great for when you’re on the go – in the car, on a train, or running between meetings – and don’t have WiFi or time to log on to the internet. Twitter tweets from any mobile or cell phones. All you need to do is dial the number, speak your tweets, hang up and your tweets will be posted in Twitter. How fun is that!
Twitterfone is still in private beta stage, if you are really eager to try it out, request for an invitation.
Registered for an invitation