Paul Battley has put together a game-playing framework for Battleship. At October's LRUG, we'll have a tournament and get the winning teams to talk about their strategy and implementation.
LRUG Battleship: Ruby Fight Club
Paul Battley has been using Ruby since 2002, and getting paid for it for the last couple of years. Since the end of 2005, he works at Reevoo, where he works full-time on Ruby on Rails based applications.