Edit: Specs are already up on the Olympus Australia web site. Here is a link to the close up lens (you can find the others under the lens product descriptions) http://www.olympus.com.au/component/...9/task,detail/
Unfortunately, not a doublet and only extends the close focus distance marginally, in the case of the 14-42 Mk II, from 0.3m to 0.24m. As the old 14-42 focussed down to 0.25m, just regaining lost ground.
May be more useful on the 14-150 as you get to 0.35m, presumably throughout the zoom range. That would be quite nice at the 150mm.