If you have a Palm PDA, have a look for Triv, a very good game with lots of questions in a multitude of modules. The game uses the same databases to play four different games, including variations of Jeopardy, WWTBAM, and Trivial Pursuit. The unregistered version will only play the first 20 or so questions in each database, but the game comes with 30 databases, so you can have plenty of play without registering.