Frist post in a few years (explanation given in off topic), so here's some slightly late news...
New Densha de Go! game to be release on Nintendo DS. Densha de Go! Tokubetsu Hen Fukkatsu! Shouwa no Yamanote Line (Densha de GO! Special Edition Revival! Showa Period Yamanote Line) is out in Japan on July 22nd 2010. As with all Nintendo Ds games, it is region free.
You have an on screen train controller, which is manoeuvred by the DS's touch screen.
This is the first Densha game to be published by Square Enix after the Taito take over. Is there more to follow?. More info in the links below....
Promotional Mc Donalds in game trains