I've first seen this iphone 4 battery case and charger in late 2010.  My friend came back from Australia and he showed me his new pickup. The product itself is lightweight, slim, and compact.  It actually was a really quality charger too.  I wanted this Case and charger for the longest time, but I don't have the funds to pay $150 to have it shipped from Australia.  Over the monthes I sporatically search online for any new iphone accessories, luckily I stumbled onto a online store in the U.S. carrying the Willy Willy.    I just placed my order yesterday.. great price...can't wait!!

Here's the link to the site if anyone is interested.

http://www.amazon.com/Willy-Battery-Wireless-Charging-Cradle/dp/B005HR3JVI/ref=sr_1_1?ie=UTF8&m=A3VINPDK0TK1JI&s=generic&qid=1316559204&sr=1-1

Its really cool and compact.very good thing is that it can also available in US i also want to buy such a cool case and charger.