Have yet to do anything with the Mii travel and friend thing, sticking with VC only for now. Maybe if we ever get some online play games it will be worth looking further into. Maybe the Miis will be a key element in our traveling to other peoples console to play the online games against each other. I think for now, when people become friends and send their Miis all that can be done is sharing messages and things, sort of like sending emails. Check into the whole Mii parade thing on your Mii channel for how they travel around. Our online situation is definitely lacking right now!