We know that after the release of iOS 4.0.1 you are all anxious to finally jailbreak your iPhone 4, but for now,Sherif Hashim, the guy who found the exploit to unlock all basebands on iPhones running iOS 4 is back with a video, which shows us how to activate iPhone 4, 3GS and 3G without the original SIM card. You can use your normal SIM card, iPhone 4 users though will have to cut SIM to micro-SIM card size before using it.

iPhone 4 activation

Here is the description:

instead of telling everyone who hasn’t got the original sim that activation of the iphone is easy using a phonebook sim card, i made this video to show u all how it works , Use any phonebook sim card, they are there in radioshack, mobile phone shops or any mobile tech moles , any phone book simcard will do the trick, no need for programmable sims, all those phonebook sims used to save ur contacts and transfer them have a universal ICCIDs preprogrammed so they all work

And here is the link to the video on youtube