Picross DS review at Blog Critics.
"In 1995, Nintendo first tried to introduce the world to idea of a picross game with Mario Picross on the Game Boy. While it did well in Japan, the game failed to attract audiences in North America.
Fast forward twelve years later, and with a new stylus-controlled handheld in the form of the Nintendo DS, the picross game is back in the form of Picross DS. While the game itself is pretty much still the same, it's not only more fun and intuitive on the DS, but has a great learning curve that will allow just about anyone to pick up and play the newest title in Nintendo's Touch Generations line."
Full Source: Blog Critics