Zynga (NASDAQ:ZNGA) has bought November Software, a startup working on a mobile game called...

Zynga (NASDAQ:ZNGA) has bought November Software, a startup working on a mobile game called Battlestone. Like its September acquisition of A Bit Lucky, the November deal is part of Zynga's push to offer more "mid-core" games - titles more complex and intense than FarmVille, but not as much as World of Warcraft. It also ties into Zynga's efforts to boost its mobile exposure as PC Facebook usage declines, and gives it some engineering talent at a time when many employees are fleeing for the exits.