For those who wish to change your gamertag on Xbox Live, this is the right time to do it: the price for not changing is more than 800 Microsoft Points but the 400MP, or a 50% discount. Unfortunately we can not know if this is an offer of a temporary or permanent change since there is no official statement from Microsoft. We will update you in case of confirmation will come on.

Update: Microsoft has confirmed that this is a temporary change, but did not specify the duration of the offer. The price of changing the gamertag will return sooner or later, then the original price of 800 Microsoft Points.