Snoopy DS: Let's Go Meet Snoopy and His Friends! is a communication game in which you create a custom Peanuts character and interact with the gang, chatting with them and playing minigames. Pingu's Wonderful Carnival is a minigame collection based on the Swiss stop-motion series about a penguin.
Square Enix is pretty serious about casual gaming in Japan -- this line joins their large DS Style selection in Japan. But outside of Japan, it's still RPG after RPG.
[Via Famitsu; thanks, maduma!]