What was really interesting from these IR spectral maps is that in their preliminary analysis of the spectra, they find that the DARK regions are mostly water ice, while the BRIGHT regions have more hydrocarbons. That is competely reversed from expectations.

In fact, I don't see how that works. They were saying the albedo was quite low in all cases, like 10% down to as low as 1%. If "bright" means 10% reflectance I could buy that hydrocarbons would be that dark, but clean water ice is showing an albedo of as low as 1%? Huh?

The scientists seemed as perplexed by this as anyone, and who knows what they'll conclude when really look at the data.

One other note from the press conference: they have not seen any specular reflections either with the visual or IR sensors. If there were any large bodies of liquid with smooth surfaces, they would have expected to see such reflections, and so that counts as tentative -- very tentative -- evidence against large lakes or seas.