I sold the Ricoh GX200 I've been using for the last year for the same money I paid for it, and scooped a Ricoh GXR with P10 lens/sensor unit off the 'Bay by adding another 35UKP - a nice deal. So I treated myself and bidded for a S10 lens/sensor unit to go with it. This modular approach promises weight savings for keen UL photographers.
Here's how it looks with the S10 24-72mm equiv unit.
I just up loaded a couple of shots taken with old and new cameras to the UL creatures thread.
Now I need to save hard to buy one of the A12 or A16 units, which will give me full DSLR image quality in my pocket. The extra few ounces this camera weighs over the older GX200 is well worth the carry I think. 383g with the camera back, S10 unit and cap, battery and bits all ready to go. The P10 unit which came with the ebay deal gives me 10X zoom and only weighs an additional 160g if I want to lug it along. Tha A12 28 and 50mm units weigh around 260g each. The 24-85 A16 zoom unit weighs 350g and uses the latest 16 megapixel full APS-C sized sony sensor.
I took this one with the P10 zoom lens
And this one with the S10 in macro mode