http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=317178520&mt=8 It's just like doing it on graph paper. You place your ships - they must have a square between them, double tap to change vertical / horizontal. Top left is your ships and where the device is shooting Top right is whose go and what ships are left. Alternate goes unless you hit in which case you get an extra go. When a ship is blown up all surrounding squares are automatically filled. The computer is quick, graphics are functional but it's battleships - graph paper and a pencil was all that was needed then No wifi / multiplayer yet. And it is free.