The London-based social gaming company, best known for Restaurant City and Pet Society, runs games on several major social networks including Facebook, Bebo and MySpace.
While there's no immediate word on how either company will change, EA already has a stable of social and casual games under its Pogo.com site and EA Play brand (which includes a major deal with leading toymaker, Hasbro).
Through a press release, issued on the Playfish site, "Playfish will operate within EA Interactive, a division of EA focused on the web and on wireless." That division includes EA Mobile and casual gaming powerhouse Pogo. It's unknown if EA Play is also a part of the same group, which might be interesting for social gamers since it has a long-term deal with toy-maker Hasbro (which includes Littlest Pet Shop and Nerf).