This new game by Square-Enix (known for now as "The game with no Name") for the DS is a horror title which has ties between the old Final Fantasy/Dragon Quest games. According to cubed3, the game tries to trick you by mimicking the DS menu screen and sending random messages while the game itself apparently contains players who die 7 days after playing one of Square-Enix's major monoliths. Confused? Have a look at the trailer. It's Japanese but it is well worth keeping your eye on it.
The game will be released in Japan on Thursday 3rd July. Here's the official site for more information and another trailer.