I came across this PDF from Microsoft Auto that talks about how a new Microsoft technology developed in partnership with Auto majors will help drivers manage and make voice requests to make a call, select and listen to music and more. Interestingly the technology is supposed to work with all major mobile devices (including Non Windows Phones), Zune, IPod and more. I hope it lives to the promise.

Finally, as always the availability is currently limited to USA.

Read the complete post at http://www.venkatarangan.com/blog/2008/01/09/Microsoft+Auto.aspx