Zynga is spending $527 million, to purchase NaturalMotion, developers of the hit (well, we liked it).

NaturalMotion was founded by Torsten Reil, who utilized his PhD work at Oxford's zoology department to create incredibly realistic and highly well-animated and lifelike mobile games, whether it be for horses, cars, or ninjas.

NaturalMotion brings pretty highly-coveted, high quality mobile franchises, filling a huge hole in Zynga's current mobile roster (which a cynic would criticize as being derivative). It's a good, but very expensive buy.