Its always good news when a high profile service comes to Windows Phone 7. A while ago GM told blog GMAuthority.com that they would not be expanding their OnStar MyLink facility beyond iPhone and Android. OnStar MyLink is an app which allows owners to remotely locking, unlocking, and start their GM vehicle or display fuel information, remaining range, oil life, and tire pressure readings on their smartphone from anywhere in the world.
It seems things have changed a bit as GMAuthority is saying they have it on good authority that the service will soon expand to Blackberry and Windows Phone 7 and for the Windows Phone 7 app are apparently working with Microsoft.
Read more on this rumour at GMAuthority here.