just take the sim out and it works
No, the sim card is located in the top of the phone only.
yes
Yes, you will have access to all the features. It doesn't matter what SIM card is in your phone because the phone needs a SIM card, given to you by a carrier, that is supported by the phone to operate. Just put the SIM card in the HTC Wildfire and put it in the iPhone.
No.
Then just get an iPod touch ..
Im not sure but i think you have to jailbreak it
No
Of course, the iPhone 3G and/or the original iPhone will take any normal sim card; the 3G iPhone will take the 3G sim as well.
An Apple iPhone 3GS can be purcased unlocked without a SIM card and used with a local carrier's SIM card. Once purchased it is as simple as inserting a SIM card from the carrier of your choice.
In some situations, the status bar on your iPhone might display No SIM, even though your iPhone has a SIM card.
No
No sim cards are only for numbers