I'd consider waiting a few weeks until the Sigma DP2 comes out. IF the sensor can handle decent ISO ranges and they really do ficx the software, it's without a doubt going to produce the cleanest images of any P&S camera.
The Fuji in high-ISO/double sensor mode is only a bit over 3.1MP. It really looks like film, or close to it - but it's even worse than the Sigma at 4.6MP Though in both cases, they could be considered "real" pixels, or close to it. Film, btw, scanned at a DLAB or similar is roughly 3000x2000. Full color, though, so figure 4500X3000 on a Bayer sensor. 13.5MP pocket cameras aren't *quite* out yet. But the DP2 at 2,652×1,768 is pretty close to 3000X2000.
OTOH, the Fuji has the 12MP mode for outdoor shots and a ton of other features...