After owning the s90 I stopped believing there's such a thing as a pocketable compact.
Even that camera was not comfortable to walk around with or store along with anything else in a pocket. I can't imagine what it's like to walk around with the RX100 in your pant pocket.
The G12 was far worse, even in my jacket pocket it felt like I was carrying a brick.
On a different note, I was watching one of the Canon preview videos and it looks like the G1X MkII retains the same crappy menu structure as the rest of the G-series; why can't they bring the high end Powershots into line with EOS, so we wouldn't have to learn a whole new system?