I've been seeing a bit more coverage in general for the Olympics, now that we're only a couple weeks out, and I notice the shoes pretty easily, here's a sample:
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This is *the* shoe to have if you're going to be boxing this Olympics. As I understand it, boxers are mostly on their midfoot and toes, so that's where the bulk of the support and padding is needed/located in this shoe. Once that's sorted, they make the rest of it as light as possible. You can basically see through the shoe, as it uses losts of high strength mesh, which also keeps the feet cooler during the pummelings. (lightweight is a theme in almost any high performance item, be it shoe or otherwise)
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Next up, the crowd-pleasing sport - ping ping! No joke, though in fairness it's known as 'table tennis' in the Olympics. Also, if you've ever seen the sport (usually only on TV during the Games), it's pretty hardcore. So, these shoes, again from Adidas (All Day I Dream About...), are part of their "ClimaCool" series. Same kind of venting/mesh as the boxing shoes, to keep feet-heat low.
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Ah, did you think I would forget basketball? Did you know that one of the biggest brands in basketball and for Nike is Lebron James? He's had his own signature shoe for about 5 years. This is the Lebron V in what I can only presume is the Olympic 'colorway'. I believe two players on the team have also guaranteed a gold medal for the US... good luck.
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Finally, I've saved what I thought was the coolest new shoe for the games, used in track & field. Middle distance track to be specific. This is from a new series at Nike called "Flywire". This is the 'Nike Zoom Victory Spike', an intended track shoe that should weigh about 95grams or .2lbs. It's the lightest shoe they, or I believe anyone, has produced for this sport. Joe Schmoe should be able to pick this up in October, but each Nike athlete at the games will get two pairs.
Oh, all the other shoes are available for purchase by Joe Bagadonuts too... but bring lots of cash for the best. The lighter it is, the more it costs.
Lastly, if you need more tech, here's a "fancy schmancy" article on 7 new Olympic shoes.