A geologist here says they do not look like fossils. Scratch and Sniff are purely geology robots, unequipped to do organic testing. The ESA bot that crashed was equipped with some organic instruments. Sounds like later bots will have instruments more appropriate to analyze brine minerals.
Well I think they need at least one Paleontologist on the team. Squyres really comes across as an arrogant saganistic ass to me at least. I don't view him as an asset for NASA and he could have been more tactful with the one reporter who asked about the possible existence of surface water within the last couple of centuries. I find the non-mention of obvious biological indications disgusting. I also have no sympathy for Squyres should he bear later scorn and it would probably be better for me to reserve additional comments until a later date...
I can tell you this though, any bare foot ten year old who has ever picked up a gravel rock from a dirt road and seen the prehistoric indications of sea critters would look at these images returned by the rovers and say yea, those are fossils.