Nickelodeon, in collaboration with Mobui, has launched SpongeBob Tickler for the iPhone and iPod touch. The app is based on the SpongeBob SquarePants cartoon series and features a virtual SpongeBob character for users to play with in an underwater setting. Users can tap the screen to talk or blow bubbles, shake the device to jump, or tilt the iPhone to make SpongeBob hang onto the sides or to see
