One of Melbourne, Australia's designers, Clarke Hopkins Clarke, envisions a humongous interactive iPad wall. Although any realistic personal use for the iPad would instantly be null, the interactive iPad wall does have the capacity to look pretty darn cool.
Implications - The idea is to take a whole slew of iPads and hook them all together onto a wall to make a sort of "giant matrix." The wall would become one huge touchscreen that would make for some very unique interactive art. The art installment could even be used for educational purposes.