With the Nikon D3100 now official and out in the open, it's time to tilt the rumor mills back towards a successor to the company's much-loved D90. Nikon Rumors has a few morsels, including what it's confident is the official name: D7000. (Rolls off the tongue, doesn't it?) No source is provided, so until we get something official, just use pencil to write it down on your wishlist. Got that? Good. The site also has a few other details that it's less sure on but just to tease: 100 percent viewfinder coverage (in contras
