Hagens Berman Investigates Claims Apple iPhone 4’s Glass Prone to Scratches, Breakage Jan 10, 2011 21:58:00 (ET) BERKELEY, Calif., Jan 10, 2011 (BUSINESS WIRE) — Hagens Berman Sobol Shapiro, a nationally recognized class-action firm, is investigating claims that Apple’s (AAPL) iPhone 4 was manufactured with…