To upgrade your iPhone 4 to iOS 5 without SIM card activation, you can use iTunes on your computer. First, ensure you have the latest version of iTunes installed. Connect your iPhone to your computer, put the device in recovery mode by holding the Home and Power buttons until the recovery mode screen appears, then click "Restore" in iTunes while holding the Option key (Mac) or Shift key (Windows) to select the iOS 5 firmware file you downloaded. This process will install iOS 5 without requiring SIM card activation.
No.
You have to put in the SIM-card and plug it into the PC. Then just slide the activation bar.
yes
no
you can, but only with an iTunes gift card
No, the sim card is located in the top of the phone only.
Then just get an iPod touch ..
Im not sure but i think you have to jailbreak it
You cannot upgrade the pixel shader without buying a new graphics card. Usually, this is not possible on a laptop without buying a completely new one.
Depend on your activity, for office it's not recommended to upgrade, but for gaming, and furthermore a recent released games, you need to upgrade to mainstream graphic card to play it without a glitch.
Yes you can - this applies to Desktop computers however - laptops usually use an on-board graphics card - the manufacturer will usually offer an upgrade service
Only if the iphone is a GSM phone with a SIM card... Otherwise if it is CDMA then no, you have to activate the other iphone.