A lawsuit has been filed against Apple in U.S. District Court in the southern district of New York state charging infringement over the trademark for "iBooks," which publisher John T. Colby says was purchased by him from another publisher in 2006 and 2007, Bloomberg is reporting. The previous publisher, Byron Preiss, had put out more than 1,000 hardcover and paperback books under the "ibooks" name starting in late 1999.