NikosR, NikoJori, and Er1kksen: you make good points that M4/3 has an opportunity to grab share from the same market segment as the G9, DP-1, etc. But this is a niche market and involves scavenging from their own LX3, FZ50, etc., customers. What Oly and Panny want is to place M4/3 as that step up from a P&S that would be compelling to Jane & Joe Public, who are presently intimidated by dSLRs. It may be that the absence of the characteristic finder hump combined with a smaller/lighter-than-dSLR form factor will have that effect.
Regarding the finder, it occurs to me that the real opportunity here would be to give us back the tilt-able LCD so many have been crying out for in conjunction with Live View. This also harps back to the Coolpix 950 series and the F707 series swivel designs that had such a loyal following. Not that I expect them to do it, unfortunately.