Curiosity has been getting ready to do its first serious drilling into Mars rocks.

• Weekend Test on Mars Was Preparation to Drill a Rock – MSL/NASA JPL
• Preparatory Test for First Rock Drilling by Mars Rover Curiosity – MSL/NASA JPL

This image shows the results of one test:

The bit in the rotary-percussion drill of NASA’s Mars rover Curiosity left its mark in a target patch of rock called “John Klein” during a test on the rover’s 176th Martian day, or sol (Feb. 2, 2013), in preparation for the first drilling of a rock by the rover.

Emily Lakdawalla describes the drilling preps and also a new picture the rover took of itself : A new rover self-portrait and a new color image of Curiosity from orbit – The Planetary Society

And an amazing shot of Curiosity from space by the Mars Reconnaissance Orbiter: Color view Curiosity on Mars from HiRISE, sol 157 – The Planetary Society.