It's been more than a year since the Coolpix P100 hit the review panels, and now it's time for the new kid on the block to step up. The fine folks over at Photography Blog seem to find that the P500 performs similarly to the P100 -- the Achilles heel still being image quality, suffering from the same washy retention of detail. The overall handling and controls haven't changed much either -- a second control wheel, the ability to mount an external flash, as well a