Handy little thing it is too.

I used to occasionally plug it into the USB at work to give it a good charge, however one day it got so hot doing this (with the lights still red) I have been too scared to do it again! I think the battery has suffered for that experience too.

My only other complaint it the clips on the solar panels are too delicate. Given that in normal use you are plugging them in and out all the time, they break very easily. I've had to resort to a bit of gaffer tape to hold one of my panels in place.

Imagine Read(ing) The ....... Manual. 

what a concept..?

> It recharges devices for free so it's utterly green

So long as you conventiently ignore the heavy metals, chemicals and enery used in it's manufacture. Plus the fuel used to ship it and the landfill it becomes when it eventually expires (after being left in the rain for a few seconds). Then yes, it has no environmental impact.
Of course, you could always go a few hours without music, or a cellphone but that might be too much to ask.

that thing is soo cool. If you were into hiking or visiting remote places that thing would be awesome.

Sensitive to damage? The dozen or so pictures on the company's own website from customers in various precarious locations would suggest otherwise.

See here: http://www.solartechnology.co.uk/products/solar_chargers/freeloader.asp