I was reading an article the other day; someone went out with their Fuji X100s and got a great set of street photographs of people all using their phones.
Shooting street either means zone focusing or very fast autofocus. The Nikon V1 is useless for zone focusing but has possibly the best autofocus of any mirror less camera (possibly the latest OMD and Fuji may match or just exceed it).
I found myself missing a few shots due to the mode wheel slipping something that many cameras suffer from but I ended up taking a series of photographs of people smoking. It was only a quick half hour walk in Lincoln but it was a fun little challenge.