Zynga Inc (NASDAQ:ZNGA) has been one of the casualties of the shift from social gaming on sites like Facebook Inc (NASDAQ:FB) to mobile gaming on apps, and investors have mostly cooled on the stock even though it has managed to cut costs and essentially broke even last quarter ($68,000 in the hole in 3Q13 compared to a $53 million loss in 3Q12). But Blackstone Equity Research has recently argued on SeekingAlpha that the company could be a good short term bet. “Zynga (ZNGA) operates in an industry where the competition is quite intense and its users have a short interest…