Yes! Although the quality of the sound is MOST important, I've been saying for years that the receiver manufacturers need to improve their user interfaces and I was surprised that no one had introduced a bit-mapped display into the receiver interface.
Aside from the aesthetics, one of the most important aspects of such an interface is that it can be presumably updated over time, either to improve the interface or to add new features to the receiver or pre-pro.
Just looking at the posts on this and other sites demonstrate how convoluted it is to use today's A/V components. By having such an interface and also making it work on phones and pads, if designed well, it could make a lot of people more comfortable with such components and help sales. I wouldn't expect to see this at the low end of the lines, but certainly the high-end models from each manufacturer should have this.
And if any of these A/V manufacturers were really smart, they'd publish their APIs and let developers design their own apps for these receivers. It was the eco-system that made the iPhone, for one, what it is today.