surenj wrote: What's the advantage of this over a P&S
Sensor size. Keith's Epson uses the same sensor as the D70. PHDs typically have a sensor that's about the same size as your fingernail on your pinky.
And PHD's don't have the advantages offered by interchangeable lenses.
or Micro 3/4??
With the optical rangefinder viewfinder you have a viewfinder that is usable in daylight, and that has high performance characteristics. Optical viewfinders do not suffer from delays in refreshing the viewfinder. While digital/live view is getting better, it is still no match for the instant response that an optical finder offers.
And did you hear how quite the shutter was? The Epson's shutter could sneak up on a Prius!