DS downloadable demos debut in Japan

From today Japanese DS gamers will be able to download demos of Jump Super Stars and Nintendogs via WiFi.

The free tasters of the two games are available to download via wireless access points spread across 326 locations in Japan. Gamers will also be able to collect a 'training version' of Nintendogs from one of Japan's largest railway stations.

At the moment the demos only last as long as the DS power is kept on. Once the console is turned off or the battery goes flat, the game disappears and has to be downloaded all over again.