I'm working on putting together a solar powered solution for my MacBook. It is more of a hobby project than anything, but I think it would be great to run my MacBook off of nothing but solar power. What I've planned so far is to use a Sunlinq 25 Watt folding solar panel with to a small charge controller and a small 12v 4-5 amp/hr battery and then feed this to a DC adapter for the MacBook. The only problem is Apple does not make a DC adapter for the MacBook other than the Apple MagSafe Airline Adapter which apparently only provides power to run the MacBook, but not charge the battery and it is not compatible with a standard regular cigarette lighter outlet. Also, Apple has not yet licensed the "MagSafe" connector to anyone else, thus no third parties provide DC adapter solutions for the MacBook either. I was able to find one home built solution (Mikegyver Solution), but it is rather expensive and I was hoping to find something a little more reasonable. Does anyone know if Apple has any plans to offer a regular DC power adapter for the MacBook? I am very surprised Apple does not already offer one. I realize another solution would be to go from solar (DC) to an inverter (AC) and then back through the standard MagSafe adapter (DC again), but this solution is very inefficient and wastes too much energy.