Kind of funny, just yesterday someone was having a moan about the difficulty of transferring ANI images from one region to another (and the work-around they have deployed, using the Amazon API and a EC2 instance).
Guess this is good news for them. I'm surprised it took this long for something as core as AMIs across different availability zones to happen. I guess there wasn't a lot of money in it.
The AWS strategy is to release the bare minimum and then announce little fixes as if they were new products. It's gotten to the point where they release a product in one region, and then later announce availability in other regions with almost as much fanfare.
It detracts from the interesting work AWS is actually doing, I think, when they crowd it out with this stuff. But we should do our bit by not upvoting their sillier announcements...
Guess this is good news for them. I'm surprised it took this long for something as core as AMIs across different availability zones to happen. I guess there wasn't a lot of money in it.