Seeing as how this is the first time humans are launching multiple probes at this planet, I hope that if there happens to be any sentient life already on Mars, they don't get the wrong idea.
The obligatory emergence-related mention in this round-up is from this New York Times article. Talking about the Beagle II, the project's lead scientist said:
"We didn't have any money, so we had to think harder," said Dr. Colin T. Pillinger, the project's lead scientist at the Open University in Milton Keynes, England.
Having fewer resources usually means you are forced to innovate. It also means you can avoid the trap of top-down design, which usually only works if you're solving a well-known problem. Since as far as I know, we haven't been to Mars that often, going to Mars does not qualify as a "well-known problem." That's why I'm most optimistic about these sorts of scrappy, bottom-up approaches (relatively speaking, anyway) than I am about top-down, big-budget bureaucratic approaches.