A post to Asheron's Call Vault has word of a brouhaha brewing over the international billing for Asheron's Call 2, the quite imminent MMORPG sequel. MS has subsequently posted an apology for not making the information available sooner that they posted to this forum thread. Here's the situation all this is referring to:

We are using a completely new billing system for Asheron's Call 2 so that we can better serve our customers in the countries outlined above. Unfortunately, you will need a credit card that is based in one of these countries to set up your Asheron's Call 2 account. We know this was not the case with AC1, and some of you in other countries will not be able to register on launch day, but we continue to investigate the countries that we can expand service into but we don't have any further information at this time.