Apparently it landed properly, but the solar panels never unfurled completely so it could not power-up and communicate with Earth. A pity, since it's mission was to directly looks for signs of life on Mars, past or present. That's something that Curiosity doesn't do.
http://www.space.com/28286-europe-beagle-2-mars-lander-found.html
http://www.space.com/28286-europe-beagle-2-mars-lander-found.html