Question: if I buy the MS Bundle from Amazon, can I give away some of the codes to international friends? Like the UK and AU?
Some games do have region restrictions, often because a country does not allow an unaltered game to be sold for censorship reasons, other times because of licensing issues, others because of big price differences by region.
It wouldn't hurt to find out ahead of time. I don't know of any quick way to find out if a particular game has region restrictions.