Very much self explanatory, and yes I did make sure my backup was fresh this arvo.
Registering the micro SIM was done online.
Transferring 4,554 songs takes a while. A long while.
Coupla hours later and iOS 4.2 is installed as well (downloaded and installed in about 15 mins), the SIM has activated, and the new iPhone 4 is operational.
First impressions? The screen is JustSoGood. The new text tones are naff.