Cheap lenses.
Aficionados of the MFT camera range from Panny (G1/G2/G10/GH1/GH2/GF1) can hardly complain about the prices of two of the most useful lens options – prices are from B&H in the US but doubtless can be matched elsewhere:
I have no special need for the first as the 14-45mm kit lens does it for me, and I wouldn’t use the fast aperture of this neat pancake lens, but I simply love the 45-200mm zoom for its OIS, low weight, small size and great performance.
I forget the prices of these when they were first announced, but suspect the above are much less.
The beauty of the promise of the MFT format is that it seems to me that the sensors will only get better, so these lenses will deliver better results from the next generation of bodies than they already do from the ones currently available.