LG: The LG Optimus Vu sports a 4:3 5-inch display, which the company states is the optimal aspect ratio for a device that fits in your hand.
Update 2012.02.18: LG put up some additional information. The 5-inch IPS LCD sports a 1024×768 pixel format good for a resolution of 256 ppi. Assuming the Optimus Vu will be used slightly farther than a smartphone and slightly closer than a 9.7-inch tablet, the 256 ppi could be considered Retina-class. Outdoor visibility will not be too big a concern with the IPS LCD pumping out 650 nits.