Another positive report for the RX100. I was worried about the menus, etc., but after I turned off that irritating splash screen that showed up each time you changed settings, I was fine. Very nice image quality and far less shutter lag than my Canon S95. With slower SD cards, it does sometimes take a while to close down the lens after you hit the power button to turn the camera off.
To carry it, I modified a Sony semi-hard belt case (LCMCSVH/B?) to open horizontally rather than vertically installing gussets to limit how far the thing can open and replacing the stock case zipper with the far easier to manipulate one from a LowePro Santiago 20. When stuffing it into a bag for travel, I put it into a Pelican 1010 Micro case into which it fits nicely.