I also love that the RX500 (and the entire RX line, really) can print photos directly off flash and has an integrated flash reader that mounts the flash card right on the desktop of my Mac. So no more carrying/using readers since its all right there.

Mine reads SD, XD, MS, SD, MMC, RS-MMC, CF. I'm covered. My Nikons are all compact flash and my mobile phones are Memory Stick Duo Pro, MMC, or RS-MMC.

The scanner on mine is awesome. Its fast, and came with a negative scanner attachment. This has been used to pull a lot of really old photos I had when I was a kid in high school with mom's camera. I couldn't buy good film and the negs have been abused over the years -- never-the-less it can resurrect even my piss-poor photographs years later:

sample filmscan from RX500