Pros:　
great when there is no power source around at all, but only gives the iPhone about 30% charge - enough to get out of trouble, but a full charge would be nice. rechargable - saves batteries

Cons:　
more power / fuller charge

Other Thoughts or Suggestions:
pocket size and invaluable on the trail or beach where there is no power at all - at least you get enough juice to make calls if you're in a fix and the battery is drained

Pros:　
Very handy and easy to use. Great to have when you are without a charging cable.

Cons:　
None

Pros:　
great works with ipods, iphone, and ipad great for charging your ipod portable and fast

Cons:　
none

Pros:　
ITS GREAT, I'VE BOUGHT SOME FOR 30-40 DOLLARS THEN I FOUND OUT THIS SITE AND I GOT THIS FOR LIKE $6, IT;S AMAZING, WORKS GREAT!

Cons:　
Nothing