I had installed iOS 5 on my 3GS just to do some testing. It ran perfectly fine. Better than iOS 4 actually. It may be old looking, but aside from processing po

I had installed iOS 5 on my 3GS just to do some testing. It ran perfectly fine. Better than iOS 4 actually. It may be old looking, but aside from processing power, graphics performance and "retina" display, it is a perfectly fine phone for the low end market.