Highest setting, even in LoZ:OoT though required a bit of arm aerobics to find that spot.
Whats the point of a 3DS if you dont use 3D? Kind of a waste of money.
Street Pass is, I am kind of ashamed to admit, 90% of the use I get out of my 3DS - I've totally got all the puzzle pieces currently available on a European 3DS.