I love the concept of objects becoming the screen. My cheapo cell phone has an internal wallpaper and a small one when I open it. It is so custom and allows me express individualism. Nokia takes this a step further with the Aeon and what they are calling the "full surface screen".
That said I think that is part of the innovation and allure of the iPhone. Instead of a small viewing screen it actually becomes a viewing device. The 360 screen rotation or " accelerometer" really makes it a viewing device. Ipods need to be updated with this feature.
Would a full surface screen work for a laptop? Skeptics downplayed the "Newport" with a 2nd external screen. But I can see the benefits. Envision my children watching a slew of YouTube videos served up through the back of my computer while I work. I for one would like to be able to show what I am looking at on the back of my screen to others. A laptop is a display device as well as a computing device.