Universal Activation Sim Card for iPhone 2G/3G/3GS/4

Pros: Easy to use. U just insert the sim card inside your iPhone and plug your iPhone to PC and open iTunes, wait until it connect to server (require internet connection on ur PC), and on your iPhone screen, it will display 'waiting for activation'. Simply swipe the screen to the right, and there you are, inside the menu =) Apple block this way by the way. When u insert other card, the iPhone will detect and say "different simcard inserted". So you have to do a bit of Googling, and find a way, how to pass this using jailbreaking method. (btw i'm using it in 3Gs 4.0 and 4.0.1 version)

Cons: None actually, just that Apple has find way to block this card, so I have to search other way to stay inside the menu, no matter what card I insert in. Just google it =)

Other: If you are common user, u better Google the way first , how to pass the activation screen using this card. then buy one. because it works on me =) 2 iPhones!
It's worth it!!!

Pros: Very great product!
I was a bit afraid it will not work but then I got the guts and after a restore, I just inserted the Sim Card and I was amazed it really did the trick!

Cons: Absolutely none! I highly recommend this product if you'd like to activate your iPhone without an original Sim Card!

Other: Great product, highly recommended to anyone who needs his iPhone activated!

Pros: I was surprised to find out that It just works, you put the sim in the device, connect it to iTunes and instantly you get to you home screen!

Cons: On 4.0 firmware you should apply additional patch so you could replace this sim with your carrier sim, without being thrown back to emergency calls screen.

Other: You should buy it if you got a bricked iPhone which is stuck on the emergency calls only screen.

Pros: I used this to reactivate my old iphone 3G after i had lost the original sim and restored the phone and it worked like a charm. I highly recommend this product.

Cons: No cons, the price is fair enough, but i guess you'd always like it to be lower.

Other: If you are in need of a product like this then yeah, look no further.

Pros: Insert sim
Connect to your computer
Let itunes activate your phone
Phone now usable as ipod.
Open safari and go to jailbreakme.com.
Slide the slider and its jailbroken.
Open Cydia, search for Ultrasnow and install.
1 of the 100 iphones doesn't work with every sim card, when that happens follow this easy tutorial on how to solve it: http://forum.gsmhosting.com/vbb/f456/iphone-different-sim-detected-connect-itunes-solution-100-a-1034504/

Cons: None, it works right from the beginning without struggling.

Other: $5.80 isn't expensive if it can help you jailbreak your iphone!

Pros: FANTASTIC! I repair iPhones and it's just awesome to be able to throw the 17 SIM's from carriers I've collected around the world away.
This SIM replaces the need for those SIMs. I've activated not only the iPhone, but a couple of Blackberries as well. These are amazing.

Cons: The sticker on top of the SIM card has a plastic layer on top of it, if you're not careful, the plastic layer will come off and become stuck inside the iPhone

Other: This works. Just works. Cheaper than buying a SIM from every network on Earth.

Pros: Really works, easy to use.

Cons: No cons, ever!

Other: I live in Brazil and was concerned if this could reach here. It had no problems to arrive. Just took about 20 working-days to came. The pics of the product maybe can look like it's a fake one, but it isn't! The card is the same as seen on the pics. And, best of all, works as promissed. Thanks to DealExtreme!

Pros: This worked to activate my iPhone 3GS. Put it in, plug it in and voila it's activated.

Cons: Not realy a con but the instructions to use it with iOS 4 only work with firmware 4.0 not 4.0.1 or 4.0.2

Other: It was worth it.

Pros: Perfect universal activation sim card to activate any cell phone without official carrier sim card. Instead of buying a Sim-Card phonebook reader with card, just buy this.

Cons: Hard to get out of mold, you will need a knife.

Other: Perfect to have in stock when you have an SimLock phone or foreign iPhone!

Pros: Worked straight out of the box, as it were. No hassles, absolutely trouble free. Worked like they say it would and I did manage to jailbreak every iphone I used it in (4).Found it works on iOS 4.1, 4.01.

Cons: Shipping took a long time but I live in Brazil. I was informed on shipping that it would take awhile so, put it down to anxiety. Not really a negative comment. But there's nothing negative here.

Other: No problems whatsoever in purchasing again.