Link:http://www.hyperdrive.com/HyperMac-External-MacBook-Power-s/91.htm  HyperMac battery can be charged with solar PV solar module   

Check these guys out.... they use solar power foldable blankets from Everest

http://macenstein.com/default/2009/04/ssd-macbook-pros-conquers-mt-everest/

solar module look interesting.... this kind of technology should be good in thailand ....

i think i just had a sex wee. it's over the battery, not the reviewer, who looks like he could be the brother of an ex gf.