The rover (and her driving team) has done it! Curiosity has taken a little jaunt inside Gale Crater and here is an image of the wheel tracks to prove it! This image was taken by the right Navigation Camera on the rover Curiosity on Sol 16 (2012-08-22 15:00:53 UTC).
UPDATE:
See our new article from today's press briefing with more images here.
Image Credit: NASA/JPL-Caltech