This would be hard for some people who use their ipod/iphone. It'd be so impossible to build a unique skyworld when the screen is so small and hard to see the whole thing. Also we have to ask the question; is their a limit to people on these skyworlds? Is their open skyworld option, friends only option, etc. Also, how would players communicate with other players? Is their an official skyworld that's like a start area/tutorial to explain how all this works, and for everyone to hangout and stuff and then there is seperate skyworlds and it's like the house system thing but skyworlds instead of houses.