You asked for it, so here it is: the iPhone 4's retina display versus a prototype Nokia E7 with new AMOLED Clear Black Display in direct sunlight. With both displays set to 100 percent brightness, we'd say that the EPD had a very very slight edge as it offered the best visibility under the most extreme viewing angles. Having said that, both are equally uncomfortable to use in extreme sunlight, even as that's defined on a cloudless morning in London. Feast on the gallery below and video after the break to see the two under a variety of viewing angles.Gallery: