Rovio, the team behind the phenomenally successful Angry Birds, allegedly rejected a $2.25 billion acquisition offer from Zynga over the summer. The news comes from a New York Times piece of how Zynga's tough corporate culture may gush talent as soon as unhappy employees with stock make some money on the IPO.
Zynga also reportedly lost out on acquiring PopCap Games also, which it tried to wave a sweet billion dollars under the noses of the company. In the end, Electronic Arts took PopCap under their wing for just $750 million with performance bonuses.
For Zynga to offer PopCap games more money, and still lose out, it says a lot about their employee perception problem. I do like what Joystiq had to say with "At least Zynga execs can dry their tears with thousand dollar bills." Sums it up nicely.