That's what TechCrunch is reporting. The story is unsourced and PopCap isn't talking. $1 billion is about ten times their annual earning power, but PopCap (creators of Bejeweled, Plants vs. Zombies, and other mega-hits) is a proven entity. TechCrunch writer Jason Kincaid runs through the standard speculations about buyers: Zynga (boo, hiss), EA, and a Chinese company called TenCent. As long as we're just making up possibilities, it could be Apple, Walmart, or Papa John's Pizza. Nobody knows anything yet, so all we have right now is rumor and speculation. All of the stories out there--including the post you're reading right now!--are just reporting TechCrunch's initial story, so we'll have to wait and see.