I bought the charger as I wanted to charge various tech items (phones, eBooks, Archos) whilst on holiday, and thus could remove the need for all the cables. Well, it sort of does this - the problem is, the solar panels never really give out enough juice.
In a cloudy or not direct sun situation - forget it. In the UK, there is no hope of ever getting enough charge to power a mobile phone for anything more than 5 minutes. Also, it works on UV rays, so IT NEEDS TO BE OUTDOORS. Dont think that you can leave this on a car dashboard or on a window sill and it will charge - it wont happen.
It has to be in direct sunlight and flat (the connection between the two panels is loose so it cant be on the move). So really, its only good for sitting by the pool, with the charger on a table or the lounger by your side.
I used it in the Caneries in very hot and bright sunlight, and had it on charge for 8 hours, for 2 days. The result is that the charger said it was 50% full. I transferred this to my HTC mobile phone, and the result was that the phone had enough charge for a 10 minute conversation - not very impressive.
I suspect the biggest problem with the design is that when it is charging, there are two lights to tell you its charging - which drains any charge it is picking up.
In a nutshell, good idea, but the technology is just not ready so AVOID!