Maximum CPU has posted its review of the Fastmac iV iPhone battery
A quote from the article:
>> Fastmac iV iPhone Battery Review
As an iPhone user, I love the functionality, the convenience, the form factor, the App Store… but the battery life? not so much. I use my iPhone to death on a daily basis, and as such I have to charge it every day if not more than once. Fastmac was kind enough to send over the iV extended iPhone battery that should amend the iPhones most serious drawbacks.
>> Fastmac iV iPhone Battery Review