Following yesterday’s acquisition of iOS game publisher Chillingo by Electronic Arts, Angry Birds developer Rovio revealed to TechCrunch that its relationship with Chillingo was limited to the original release of the iPhone and iPad games in December 2009 and April 2010 and did not evolve beyond that point. Peter Vesterbacka of Rovio told TechCrunch, “We only did the first iPad/iPhone integration with Chillingo and aside from that…