Olympus clarifies: it is about 4/3 lenses, not a new 4/3 body

If it a m4/3 body as I am suggesting, the body will have the small m4/3 registration distance. The extra 16mm or so of mount depth will only be present when a m4/3 to 4/3 adaptor is used to mount a 4/3 lens --- and that extra bulk will hardly matter when a bulky lens like my 14-54/2.8-3.5 or 50-200/2.8-3.5 is being mounted.

By the way, why do so many people talk only about this 4/3 lens support being relevant only to the somewhat rare and expensive SHG lenses? I would guess that there are far more people wanting to use the mid-level HG lenses, like the 14-54, 50-200, 12-60, 50mm macro and so on.

Also, I support large lenses with my left hand under then lens, not holding the body with one hand at each side, so I do not understand this idea that "big, heavy lenses need big, heavy bodies". For example, the smallish E-510 and bulky 50-200 work together fine for me.
--
Smaller lenses, better in low light, more telephoto reach:
you can have any two at one time.