ZAMtendo
Obliterating everything that's not your friend
Sucks living in the UK for streetpassingThis system feature is almost entirely useless over here, the odds of running into someone with a 3DS in sleep mode with streetpass enabled is incredibly low. Maybe at an airport or something, but other than that it just won't ever happen.
I got a 5 or so in Central London. And usually get a least one day just walking about in town.