We now have this wonderful little wide-angle lens in stock. Not only does it fit the Olympus PEN series of Micro-4/3 cameras, but all the Panasonic Lumix Micro-4/3 cameras as well of course.
It has superb anti-reflection coatings and is one of the best wide angle lenses I have seen for flare resistance. It is also very sharp, even corner to corner when stopped down to at least f/4, and boasts the first manual focus scale with depth of field markings of any Micro-4/3 lens that I am aware of. Sadly, it does not include a lens hood, but it is so well behaved when sunlight is hitting the front element, that only in certain situations will you ever really feel the need for a hood.