No More carrying 2 Phones Around and No More Misplacing of your simcards, stay organized .
No More swapping Sim Cards over using the supplied iPhone opener tool with the iPhone 4 impossible sim gates style from apple every time.
When ever i get my hand on my apple phones i always loose the tool used to open the Sim gate tray mechanism.
Then I'm forced to look through my paper clips collection to find one of the right size and top worry about damaging it altogether.
I find that the paper-clips that come in different colours like this are the best ones as once you take of the out coating of the plastic the size is about right to get the iPhone Sim out to be able to simply swap over to your other network sim card.
Well no more of the complicated fiddling around and keeping your other network Sim Cards in your wallets or purses & pockets in jeans,trousers or jackets. and no more worrying if your spouse ended up washing your other network sim card in the washing machine as you forgot to take it out.