"Serves its purpose."4.0 starson by erg208
Pros: Good design. Does NOT look like a battery attachment. Battery power indicators. USB cable works with IPhone power adapter as well as sycing with iTunes. On/Off switch offers choice of Morphie's battery or iPhone's. Hard protective casing.
Cons: Design does add bulk and weight to your iPhone 3G, but which case doesn't. A small gap/space at bottom for microphone and speakers traps lint and dust. Does not cover the front silver lining of iPhone.
Summary: I've searched for quite sometime for a backup battery that does NOT look like an extra battery attachment. This 2nd Generation battery pack from Morphie serves its purpose -- juices up your iPhone 3G easily. On/Off switch option, battery indicators, USB cable that works with current iPhone power adapter are a plus. For $79.99 at the Apple Store I think it's worth the buck.