TECH CRUNCH - Jan 31 - Last week, the developers at NimbleBit accused Zynga of copying them with its new game, Dream Heights. Now, it’s happening again. This time, the accusation comes from Buffalo Studios, which says Zynga copied its flagship title Bingo Blitz with its launch of Zynga Bingo. Bingo Blitz claims to have over one million daily active users.