P.S. I kinda think when such a camera is on a tripod at low ASA in a low wind setting shooting landscapes, that it can be as good as any other 14.7 meg pix camera. So my question could also be, how big does a 14.7 image go while maintaining high quality.
Except for dynamic range. If the landscape you are shooting has a high range of brightness, from fluffy white clouds to deep shadows in the foliage, the G10 would prove to be very inadequate. Of course, even a DSLR can be inadequate is such situations, which is why it's sometimes necessary to bracket exposures for blending.
I get the impression that DR in general tends to be roughly proportional to sensor size (excluding patented technological advancements which can give one camera a DR edge over another with the same size sensor).
In circumstances where you would get by with a single shot from an MFDB, you might have to bracket a couple of shots with a DSLR to get another stop or so of DR. In circumstances where you might just get by with a single exposure from a DSLR, you would probably need to bracket a few G10 shots to provide another 3 or 4 stops of DR after blending.
In circumstances where you need an additional 3 stops of DR from the DSLR, you would need 6 or 7 additional stops from the G10. That's a lot of bracketing and would take quite some time with the G10 with its slow frame rate. Not ideal by any means.