NightFox has released an update to his DS homebrew, Navy Wars. The game is a remake of the turn based classic, Battleship. It has been updated to v20110213, which fixes DSi mode for CycloDSi users. Note that his project was built using NitroFS, so Homebrew Menu may be needed to launch it.
QUOTE(Change Log 02/13/11)
Fixed ARM7 issue in DSi mode