Kostya: It is a complex problems and economists are already looking into it.  And speaking of restrictions, gambling in Second Life has been made illegal to comply with federal regulations. Good. The next step is Sarbanes Oxley with army of auditors, hehe 

One problem I see with virtual life is when it start to get into the real world. There were several attempts to create virtual currency that can be converted into the real currency or can be used to purchase real goods. This is when game gets too far. Not a single government will allow you to go around it's taxation system. If your game is the ...