Rumor of a new four-thirds lens, Olympus may have a Zuiko 30-150mm Lens with F/3.3-4.2. This is an impressive aperture for such a variable telephoto lens. I can't read what the rest of the website is saying, but this is rumored to be a new lens announced this year.
[Source] https://egami.blog.so-net.ne.jp/2010-07-10