I thought you were integrating with the stock nav? If you do go touch screen, someone offered me the idea of adding another seperate screen to the right of a standard 7", to fill the space. That might be interesting, perhaps designated to a back up camera, or just some sort of ambience. I searched long and hard for a screen wider than 7", but came up null. This was the most exciting find for me check this sucker out. Seems a perfect fit but I don't think it's applicable for what I was trying to accomplish (carPC). Man that would have been good. I've decided to just go the stock nav route (currently non-dsp radio) and hopefully integrate some cool stuff into it. Really interested to see how your project works out.