Touch Solitaire (Solitaire DSi in Japan) is a DSiWare video game released in 2009 by Nintendo. As its name suggests, its solitaire on the go. The game costs 200 Nintendo Points, or $2 USD. The game features the most popular versions of Solitaire including Klondike and Spider Solitaire. Both games are faithful to the original and is played entirely with the stylus.
IGN ranked Solitaire DSi as the second best DSiWare video game due to the fact that, while fairly simple compared to other DSiWare games, it is extremely popular the world over.