Well, I do and so I got myself an Otterbox Defender case for my iPhone 3G. I chose the black and yellow version, although I have a white iPhone, because I think the white version would look grubby in no time using it outdoor and the black version would be too inconspicuous (imagine your accidentially drop your iPhone somewhere in the high grass or so).
Looking nice, ain't it? :)
So, what do you get for you money? The Otterbox consists of four pieces:
- The back of the plastic case,
- the front of the plastic case,
- the silicone skin and
- a belt clip.
The screen itself is protected by a plastic film that just seems to be thick enough to protect the iPhone but not too thick to affect its usability (in fact, I have an adhesive-type protective film on my iPhone's screen, which I didn't remove to use the otterbox - still worked perfectly).
The notches that need to be open in some way (speakers and microphone) are protected by some kind of fabric that looks a little like the mats you might know from glass fibre repair kits. It looks very fine-meshed, not even dust will be able to pass trough.
Then there are the earphone and data socket and the "silencer" switch. They are covered by some sort of "silicone lid" that can be opened easily, so all of your iPhone features are easily accessible while it's in the Otterbox (except for the SIM module).
Closing the lids is a little fiddly, though. They all have sealing lips that prevent dust from entering the case, but you have to pay attention to fit them in the right way.
The Otterbox adds a considerable amout of bulkyness to your iPhone, about 4-5mm in every dimension, so the Otterbox might not be the right choice for every day. Beside the bulkyness, there is the silicone skin. It gives some good protection, shock absobance and so on, but I don't like those silicone skins anyway because they always are like a dust magnet... not only can you see every little piece of dust that sticks to it, but you can't wipe off the dust with your hand or a piece of cloth either.
So silicone cases (in general) are a bad choice in my opinion, espechially if you use to carry your iPhone in your pocket.
On the other hand, it sure adds quite a lot of extra protection. I think that the iPhone could survive a 30 feet drop easily in the Otterbox. It also gives you quite a good dust protection so you can take the iPhone also on the beach or so. Please note that the otterbox is NOT waterproof (altough it will give you a limited amout of water protection).
There is another nice feature: you can lock the belt clip. I don't know if it was intended for this purpose, but you can put the iPhone on your table in quite a nice angle, making the Otterbox a perfect stand e.g. for watching movies.
Unfortunately, the mounting- and unmounting procedure is quite intricate, so you don't want to use it just for taking a walk outside. But if you are on a holiday trip that will take you "out there" for a few days or weeks, there's no better protection for your iPhone (other than leaving it at home, but who could possibly want that?).
List price is $49,95 but if you have a look at the usual places :-) you should get it for around $35 easily.
Maybe you also want to have a look at this video to give you a better impression of what the otterbox is like: