I remember seeing a commercial for those things where they drafted the Top Chef brothers, and even in the commercial it looked extremely awkward to use. "Oh, let's just look up something...(walk over...bend down...glance at screen...slowly punch things in...)." Even if it were the best thing ever, I know technology and I know that fridges last years longer than any gadget ever has. Any choice of touchscreen, OS or ev…
Same reason why GPS feature in a car is useless. I'm using google maps on my phone anyway due to the better interface and constant updates.
Rather than relying on it for guidance, I use it as a reference for routing around small inconveniences (road work/construction, accidents, etc.) on familiar routes. I've found it quite useful in this regard, and the large screen size definitely comes in handy for at-a-glance usage.