Back in April, Sega Sammy announced that it will acquire Angry Birds creator Rovio Entertainment for 706 million Euros (about $776 million) to help with its expansion in the mobile market. Today, Sega has confirmed that the acquisition is complete and Rovio has joined Sega Group.
Fun fact: The original Angry Birds had its debut on the Nokia N900 - the best Linux phone to ever grace the planet.