Ok, this smacks of the spiffy.

Recently, accessory maker QuickerTek updated its Apple Juicz line of solar power chargers, releasing a flexible photoelectric tarp which can be laid out upon or staked to the ground to absorb sunlight. The 27-watt model covers 41.”5 x 30.5″, and recharges a MacBook Air in 12 hours; the 55-watt version is 59″ x 43″, and does the same in six hours. Per Macworld, both models fold up to notepad size for transportation in an included case.

The Apple Juicz comes with a rebuilt MagSafe connector for use with your MacBook, a 12V car charger, and a third connector to attach other QuickerTek products such as external battery packs. The QuickerTek web site lists the Apple Juicz for the MacBook Air as a separate unit from the standard model, but also says their standard model is compatible with the Air.

The Apple Juicz retails for US$700 for the 27-watt model, and US$1200 for the 55-watt model and is currently available for order.