"We ♥ Katamari" was released last week. (That's "We Love Katamari", with a heart for love, in case your browser didn't render the heart.) I've had a chance to play through it (complete to the end, in two days...) and can give my brief review.
In We ♥ Katamari, the King of All Cosmos and his son the Prince are helping out their many fans from the first game. You play as the Prince or one of his many cousins (who you unlock during the game), and travel the world, attempting to gather up as many objects into the Katamari (Japanese for "clump"). The Katamari is essentially a magical sticky ball that can absorb any other object into itself, including thumb tacks, chocolates, apples, chairs, desks, people, houses, skyscrapers, islands, and mountains - as well as hopes and dreams.