Even QPR hardly use it, although not a fair comparison as they are s****.
I have seen Southampton use it on occasion too but they seem to prefer a 4-2-3-1 or 4-3-3 more often than not.
As for City it's a little different, Nasri and Silva come into midfield usually, Aguero drops deep and fullbacks push on and Barry and Toure drop in.
With City there's a lot of movement and interchanging to really define it as any one system.