Image courtesy: @forumolympusfrance
Forum Olympus France tested the Panasonic 7-14mm lens on the Olympus E-P2. Pleas notice that you can read the review in Français, English and Español (you can choose the language on the top of the article)
SLRclub tested the new Olympus 14-150mm lens. Translation is not available because they post their articles as Jpegs(!!!). But there are videos and a lot of image samples and comparisons.
PEKKA POTKA: Leica lenses on Olympus PEN. Interesting to see the same lens perform on the Leica M9 and then on the Olympus E-P2