That's a great idea!
http://www.gearlive.com/news/article/q109-exclusive-twitter-integration-coming-to-onstar/OnStar users, look out—Twitter is about to become a part of your experience. How so? Well, being an owner of a couple of Cadillacs with OnStar built-in, we sometimes receive surveys or phone calls asking us how we are liking things. Nothing out of the ordinary. However, in today’s survey, I found a portion that was particularly interesting:
“While in your vehicle, you can use OnStar to submit and retrieve tweets (messages) via your Twitter account. Using OnStar’s Voice-Activated Hands-Free Calling system, and having your voice converted into text, you can provide updates which would appear in the “What are you doing?” section of your Twitter homepage. It is also possible to listen to a tweet that was sent to you by someone else after it has been converted into voice. You can send and receive tweets without having to type or read anything.”