New submitter Shavano writes with news that Apple's attempt to block Samsung from introducing evidence of a tablet prototype developed in 1994 has been denied by U.S. District Judge Lucy Koh. Part of the reason Apple got a sales ban on Samsung's Galaxy Tab 10.1 earlier this year was that an Appeals Court said Apple's tablet design was significantly different from earlier designs. Now, Judge Koh has decided that the issue needs to be decided by a jury. "Samsung has argued the design was an obvious variation of tablets existing as early as 1994, including one made by Hewlett-Packard Co. The Korean company supported that argument at the trial with videotaped testimony by Roger Fidler, who heads the digital publishing program at the University of Missouri. Fidler said he started working on a tablet design in 1981. Apple sought to exclude the testimony based on the appeals court ruling. In a written declaration, Fidler said 'Apple personnel were exposed to my tablet ideas and prototypes' in the mid- 1990s when the company collaborated with Knight-Ridder Inc.’s information design laboratory in Colorado."