Visit the JPL site to see the new images that have an amazing amount of detail and seem to show evidence of water rivulets running down the side of what look slike sand dunes.
http://www.msss.com/mars_images/moc/e7_e12_captioned_rel/index.html
These pictures are truly breathtaking.
I'm a little disapointed that there are any little green men waving.
I've been reading this web site too much this week
http://www.dailygrail.com
It is a great place for guff and pseudoscience. Although I do think they are actually as sceptic as any good thinker should be.