Cummon… do people really want Twitter integration with Onstar? That seems like its going too far…
“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.”