From the department of glass houses and stones, social gaming giant Zynga is suing Vostu, the biggest social gaming company in Brazil.

Vostu was co-founded by Josh Kushner, one of New York’s most active angel investors, and, full disclosure, a backer of Betabeat.

Zynga writes that Vostu has copied, “all of our key product features, product strategy, branding, mission statement and employee benefits lock, stock and barrel.” Read More