Pocket Camera to Accompany a DSLR

Hello everyone,

I'm currently selling my G11 because I just purchased a Canon t4i with several lenses, external flash, tripod, etc. I don't really have a need for my previous "best" camera because the t4i was bought to replace it.

I'm looking to purchased a good point and shoot that'll fit in my pocket (or my wife's purse) to have with us at all times, and in some cases where we might not want to carry around the big camera (like an Anniversary dinner).

I've outlined my current choices and reasons for them below. Any thoughts and opinions are appreciated:

• Olympus ZX-1 - $200 on Amazon right now. Good reviews. Significantly smaller than G11. Great lens.
  
• Sony DSC RX100 - $648 on Amazon. Much larger sensor than ZX-1 and G11, but is smaller in size (which is a perk). Didn't really want to spend $448 over the good price on the Olympus.
  
• Canon S95  - Less than $200 used. I've always used Canon, so this is why it's here. In the sub $200 price range, I'm currently leaning towards the Olympus just to try something new. However the S95 is noticable smaller than the Olympus (about the same size as the Sony).