Panasonic GF1/2, Olympus PEN or Sony NEX. Regular P&S cameras cannot compete with their smaller censors. I had LX5, which was useless, sold/gave it away.
To be honest, I am not really familiar with the NEX cameras. All I know about them is theyre sony and they are interchangeable lenses. I figured they were pretty similar to m4/3 in practice. Guess im wrong. Still theyre way too large and cumbersome to replace a PS.
I want one pretty bad , looked at getting one the other day but did not want to part with the cash ...