I took my new Optio WPi on a recent trip to Henry Coe State Park in Northern CA.
Henry Coe WPi Shots
I was actually pleased with the results, and I'm pretty picky. Up close they don't look as good as my DSLRs, but they look great at 8x10. I'm quite pleased at how much I can get away with without post processing.
These images are straight out of the camera except for a web-gallery export in Photoshop (which just means resizing).
That waterproofness was great - we got rained on and I didn't have to worry about the camera on my pack strap.