Abstracts are available from last week's AAS Divsion of Planetary sciences conference. These are short one-paragraph blurbs unlike the one-two page pdfs you get from the LPL or (I think) AGU conferences, but still some interesting tidbits.

Lots of stuff on Titan and other Saturn-system features, comets, exoplanets, etc.

http://www.abstractsonline.com/viewer/browseOptions.asp?MKey={ADDC1E2E-9B5A-4D9F-B9E3-2D6700638A29}&AKey={AAF9AABA-B0FF-4235-8AEC-74F22FC76386}

Given the perennial interest here in Mars, one noteworthy abstract is Pascal Lee and Chris McKay, "Early Mars: Mostly Cold and Dry". They argue against widespread surface water in the Noachian, on the grounds that the crater degradation we see actually takes far less water than the common assumptions have been, and that the Noachian flow features are best explained as sub-surface flows caused by basal melting of ice deposits. Both points based on analogues from Devon Island.

http://www.abstractsonline.com/viewer/viewAbstract.asp?CKey={D0F92612-AD34-48FB-B162-08D69EFFCAE9}&MKey={ADDC1E2E-9B5A-4D9F-B9E3-2D6700638A29}&AKey={AAF9AABA-B0FF-4235-8AEC-74F22FC76386}&SKey={C555C5ED-34FF-454D-98BF-A2AA56EFA28E}

On the other hand, another paper based on HIRISE images claims to observe fluvial features in the ejecta around recent craters in likely ice-rich terrains (e.g., channels that emerge from apparent terraces/ponded areas in the ejecta piles) as well as some evidence of alteration (phylosillicates). That really doesn't argue for a "wet" Mars though -- Nick, I'd imagine you have no problem with localized meltwater present for a short while after an impact into an area with lots of subsurface ice.

http://www.abstractsonline.com/viewer/viewAbstractPrintFriendly.asp?CKey={A5BC6636-343E-4DFF-8997-C6C478E93904}&SKey={D7CB15A7-453F-4629-905F-B238C0540EDA}&MKey={ADDC1E2E-9B5A-4D9F-B9E3-2D6700638A29}&AKey={AAF9AABA-B0FF-4235-8AEC-74F22FC76386}