Front brake on Left or Right

Ok i thought i'd ask the question after id been looking through the ride bicycle magazine and noticing almost everyone has it on the left. But i saw a picuture of Cadel Evans also in the mag and it had it on the right. I checked my bike and found it also on the right. So a couple of questions:

1. Is there a side it is supposed to be on?
2. Is it just me with it on the right or is it an aussie thing (sort of like how we drive on the left hand side of the road and on the right of the car).
3. What way do you have it.
4. Your thoughts about it (does it bother you, have you ever noticed other peoples being different etc, etc.)


Note: also posted this in road-general forum