$22 gets you Solar Charging Unit From Brando
 

The USB Solar Charging 4-Port Hub with Torch is not only a USB 4-Port Hub, but also an emergency power backup solution for your device. It has a built-in rechargeable battery(130mAh) and comes with seven mobile phone connectors that can recharge most known mobile phone. The built-in rechargeable battery can be recharged through direct sunlight or USB power. It is a portable, environmentally-friendly, lightweight, durable and versatile solar charging product.

http://usb.brando.com/usb-solar-char...88c039d15.html

130mAh ? That's ridiculously low, it's good for 10% extra battery life on your device and the 50mA generated by that little solar panel isn't going to help either.
I sure do hope that it's a typo :)

all you need to make that one last emergency call :D

Like you're going to carry a USB hub with you all the time just in case your battery is flat during an emergency :ws:
Then you might be better of with the €11 battery/solar panel from Action. Tough it's better if you charge it via USB because the heat just kills the batteries inside (+60°c) and it also reduces the energy output from the solar panel.

in your car/backpack? :)

There is something similar from Arctic Cooling, 4400mWh http://www.arctic-cooling.com/catalo...=82_89&mID=550

sharp price also
and looks pretty sleek too

no iPhone support though it seems

4400mWh at 5V is only 880mAh. The Action solar panel has a few hunderd mAh's more, costs less and comes with an iPod/iPhone connector :-p
Only downside is the crappy built quality and the fact that when it's empty, it charges a condensator and discharges it every 1-2 seconds (which is good for ruining your battery :no: )