At risk of double-posting on the same topic, but:

I highly recommend the PowerFilm solar panel w/ USB-out. It's:

1) Is compact, lightweight & folding with soft/bendable solar panels (ideal for travel and throwing in a bag).

2) Trickle-charges from the panel to 2 AA Sanyo Eneloop batteries internally, which then discharge at 5V to the USB port.

This means you can decouple sun collection from device charging, store up whatever sunlight happens to be available at the time, and use it later when you need it. OR -- if you have extra already-charged NiMH AA batteries lying around, you can just use it as an external charger.


This is where I ordered mine:

http://www.hodgesmarine.com/ProductD...SB-AA&click=19

You also probably need the 2-headed Seido cable to get the N900 to charge off of a "dumb" USB power source:

http://www.cyberguys.com/product-det...roductid=35678


Sam