*This is not a Japanese product, made in Finland.
Mobile virtual world "Bobba bar" is pleasant.
My impression, "Bobba bar" seems to be adults "Habbo".
User interface is simple, and can easily operate if not good at English.
Some of the virtual world that can use in iPhone, but I think "Bobba bar" is elaborated best.
iPhone App
http://www.itunes.com/app/bobbabar