It is actually coming, so get dressed. Microsoft has just announced that AT&T will be carrying their table monitor to help customers select phones in their stores. This is basically a soft roll-out which will allow Microsoft a little real-world feedback while getting consumers used to the product.
From the big "M": "Microsoft Surface is a 30-inch table-like display that gives individuals or multiple people the opportunity to interact with devices and content in a way that feels familiar — by using touch, gestures and placement of devices on the display. In essence, it's a surface come to life for exploring, learning, sharing, creating, buying and much more."
It will be interesting to see how well something like this fits in to our living spaces down the line...