An opinion on Canon D10 vs Canon G10 in terms of image quality – "tsubasa1", a Powershot G10 owner, says this of the D10:
I just got my D10 a few days ago and I love it. It is not only waterproof but also shockproof. As of IQ, I don't think pictures taken with D10 are notably inferior than those taken with my G10. Now I take D10 everywhere I go.