While it's not a new image from the Mars Curiosity rover, this MARS Greeley Haven 360 Panorama is still pretty damn impressive to see. I can't wait to see what comes from the newer tech and better cameras :) From the 'about this image':
This is the latest panorama released by NASA July 2012. It was assembled from 817 images taken between Dec. 21, 2011, and May 8, 2012, while Opportunity was stationed on an outcrop informally named 'Greeley Haven'. on a segment of the rim of ancient Endeavour Crater.
Via my buddy @brian_pearce.