gemini2.bmpOur virtual world experience so far has been dominated by Second Life and other PC-oriented games.

Now, virtual worlds are going mobile.

Gemini Mobile, a San Mateo company, says that hundreds of thousands of Japanese are subscribers to S!Town, a mobile virtual world with a 3D interface it has built that lets users shop, chat and build custom property, among other things — all with an avatar of course.

Today the company announces it has just raised $20 million from Goldman Sachs.