Why does Olympus persist in putting the power switch over on the left shoulder? It makes one-handed shooting a really PITA.
There's a long tradition of Olympus OM cameras having an on/off switch on the upper left of the top plate, starting with the original OM-1 right through to the OM-4. For me getting it out from under my right thumb is a great idea and I love the on/off switch on the Pen-F. Personally if I'm shooting one handed I want the camera to stay on, so I'm largely indifferent to where the on/off switch is as long as I don't keep turning the camera on and off by mistake. I do, though, have a slight preference for where Olympus puts it. But I cut my photographic teeth with the original OM film cameras, the OM-1, 2 , and 4, of which I still own a 1 and 4. Different strokes for different folks.