An anonymous reader writes: Taxi owners in New York have filed a lawsuit against cab-hailing app giant Uber, citing damaged revenues and a hefty fall in value of NYC's 'medallion' business. The case against the city and its Taxi and Limousine Commission claims that the regulators have unfairly permitted Uber to steal away business from the regulated cab industry. Getting away without regulation has enabled Uber drivers to compete directly, and drown out official taxi companies. A further lawsuit case hovering over Uber this week, is its request to immediately appeal an order approving class certification filed by its own drivers. The appeal was denied by a U.S. court yesterday.