This seems to have made the rounds yesterday and today. The Windows Azure ACS team decided to extend the promotional period to December 20th 2012. In other words, free for the next year. Sweet! I can’t say it was on my Christmas wish list, but it certainly is a great little gift.
Also, ACS v1 is being deprecated the same day. Curiously, that was on my wish list. 
ACS 1.0 will be officially taken offline on December 20, 2012. This 12 month period along with the ACS 1.0 Migration Tool allows customers with ACS 1.0 namespaces to proactively migrate to ACS 2.0.
Frankly, I don’t think many people used v1, or if they did they migrated to v2 quickly after it was released.
For those that haven’t migrated yet, Microsoft released a set of guidelines for migrating. You really should get on that.
Access Control Services / Announcements / Azure / Migration