You use your in house wifi connection. Coffee shops have their own wifi. Friends and family houses have their own wifi.
Seems the only time 3G will be useful is when your a passenger in a long car drive. There is also while taking a walk or on the bus but those 2 things require you to be at least a little aware of your surroundings.
so seriously, everyone who buys the 3G Vita must have mom and dad drive them an hour to see good ol Aunt Margaret for dinner every other weekend :P. Otherwise you just hijack the wifi wherever you are.








