rx100 the one to beat?

I'm itching for a new camera, a smaller one, a 'go anywhere' cam, for when I don't feel like taking the a57 and associated gear.

I've been looking everywhere for fast shutter response, excellent image quality, solid build quality, video with zoom and without zoom motor noise, and an excellent lens.  I'm interested in easy adjustments (external controls preferable) but can overlook the lack of this if the auto mode is solid.

I'm waiting for the Fuji x20 to come out.  I'm looking at the olympus XZ-2.  Even considering the Pentax MX-1.

But any way I look at it, the rx100 is the one to beat.  Is this really the case?  Anyone have the RX-100 and any of the above cams? (Ok, in the case of the Fuji, it would be x10 since the x20 is not out yet).

Any rumblings of an update to the RX100 coming out any time soon?