Update: Two weeks after our first posting, Olympus makes the announcement official. See the article at DPreview for full details.
A dutch website yesterday released some information about a new “entry level” DSLR from Olympus utilizing the 4/3 system. Also included was information about a macro lens with a 35mm focal length (70mm in 35mm equivalent) capable of doing 2:1 (35mm equivalent). I’m sure we’ll have some more information soon, so watch this space. Also of interest is the un-official Olympus 4/3 lens chart - which now shows some 3rd party (Sigma) lenses planned or available for this new mount.
Today I found a page on the unofficial 4/3s website about this camera.