Did you know you can connect your Playstation (1 or 2) to your I−Appli phone? There are 5 games that currently support it. I think this will be the new way vs say a Pocketstation support. They have Dokodemo Issho for the I−Appli phones.
Also you can now get real−time traffic maps on your i−Appli phone. I don't know why they require i−Appli as they could do it like the Southern California ones and just generate a .JPG file ever minute or so but they I−Appli one is slightly animated.