Those of you considering getting the OEM Navigation unit should wait and check into this new after market nav unit coming out this fall from a company called Azentek. Their unit is the Atlas CPC-1000. The company has a website and if you go to You Tube, you can watch a video showcasing all of its features. Of all things, the company installed one in an Acadia to show it off. This is no ordinary nav unit. It uses Windows Vista and you can have Office 2007 on it. You can browse the web, receive and send email, it can even read your email to you while you drive and you can dictate a reply message while you drive. You can hook up any USB device to it and you can even use a regular type of keyboard to enter data. They had a folding keyboard that will fit in the armrest storage compartment. One other thing about it is it has a huge hard drive. I think it is between 80 and 120 GB. That's alot of room to store music, photos, video clips, etc. The company teamed up with Microsoft and have their full support. I think it will retail for around $2000 dollars. And of course, you can add a backup camera to it. It may very well set the standard for future nav units and make what we have now on the market, outdated. Let me know what you think.