While the MacBook Air is light in every way, the fact that it's still a premium laptop (*ahem* price cut please) may keep people from actually using the way it's meant to be used - as an on-the-go notebook. Fear not fellow scratchaphobes! Incase has you covered from the exterior to the thermal vents with their new Hardshell line for the MacBook Air. As a matter of fact, it's so wonderfully snug and well-designed that you may consider grabbing one just because the silver isn't doing it for you anymore...
The Incase Hardshell Case comes in two flavors; classical black and muted cyan/navy. Go black if you're looking to dim down its profile a little bit in areas with high rates of laptop theft (libraries, airports, etc.) or stick with bright blue if you're looking for something with a little bit more pizazz.
The exterior is made of a rubberized soft-touch coating and is precisely cut to allow easy access to power, headphone jack, USB, and Mini DisplayPort areas. There are also precisely cut holes for the vent underside and rubber feet to elevate the notebook from dirty surfaces. A mighty clever case if we've ever seen one.
You can grab some durable protection over at Incase direct for $50.