Developing new and interesting ways of charging phones is going to be a booming business in the near future. After we saw the birth of the Palm Touchstone we knew that there would be other companies that would do their own take on this concept.
Of course, who better to get the contact charging system than the Apple iPhone. After all if you believe Apple, the iPhone charges everything it touches so it stands to reason that this phone should pull power from the very air itself.
Now while the WildCharge contact charging system for the iPhone 3G S does not pull power from the air. It does enable contact charging. There are a couple of cons to this. The first is the pad itself; it is not the most attractive item out there. The next is that you have to use the iPhone case they provide. So, if you have one you already use (like my OtterBox Defender for iPhone) you either have to give it up or constantly swap cases when you want to charge your phone. The case has small "nubs" embedded into the back that need to make contact with the charging pad to work.
If you are looking for wire-free charging this is a decent start and a bundle with both the base plate and skin case is about $80 US.