I own the Olympus 25 at the moment but am considering switching to the Panasonic Leica camp as I love the Leica's rendering, gauging from the photographs from the Panasonic 25's samples thread. I know, I know. The Leica is bigger and has a longer minimum focus range than the Olympus. I wonder though whether an aperture of f1.4 produces noticeably more bokeh than with an aperture of f1.8? I adore shallow depth of field, you see. Is there an evident difference between the two lenses? To those who switched camps, have you regretted it in any way? I'd like to know your opinions.