To promote their various laptops and showcase their digital sign technology that uses real-time data over the Internet, Toshiba tested an interactive digital billboard in Tokyo last weekend. YouTube users and passers-by with mobile phones were able to play video games against each other and take a short break from the rigors of city life.

The games were played on a digital billboard above the entrance to the Yodobashi Camera superstore in Akihabara. The games are basically mini-games and involve up to six players in a 90-second race to paint squares on a grid and hunt for Toshiba’s cute and cuddly Pala-Chan mascot. Mobile phone players used their number keys to control the game, while YouTube players on computers used the arrow keys on their keyboards. Videos below.

Check out this new mashup by Japanese coder Ryo Katsuma. It has a lot of potential. It takes the exercising aspect of the Wii and combines it with virtual tourism, by using Google Maps with the Wii Remote to create a virtual jogging or walking experience.

The crazy mashup takes you on a tour through a good bit of Tokyo, but what’s cool about it is that it could easily be applied to any city you want covered by Google Maps, letting you be a Wii world traveler. If you want to build one yourself, you can find out how over at Tokyo-jogging.