Has anyone had any issues with dust on the sensor with the RX100? I have a Ricoh GR which is a lovely size for a pocket and bloody love it, but it's let me down with dust getting into its innards. For me it's pointless having a pocket camera if you can't just chuck it in your pocket. I don't mind keeping it in a thin pocket case, but I don't want to add any bulk and I don't want to have to pay extra care to keeping it free of dust. I have a mate who's got an RX100 and swears by it after being plagued by dust with ricoh and fuji cameras, but I just wanted to get the thoughts of a wider audience.