It looks like you can now purchase Eithad Guest miles up to a maximum of 100,000 miles per year at points.com now. As far as I am aware this is the first outright opportunity to buy Etihad miles. Historically you have been able to purchase up to 25% of the total reward when you are redeeming miles at a very reasonable rate (~0.9c per mile) but it was limited to a points top-up as part of a redemption rather than an outright miles purchase.
via Spizz over at AFF Etihad guest now have a link up on their website that redirects you to points.com where it appears that miles will be sold at a flat rate of 0.2c (usd) per mile no matter how many you buy.
This is an interesting development, especially if Etihad start offering the sort of sales and bonuses we have seen from other Airlines that sell miles.
The page does state that you are limited to purchasing 100,000 miles per year, but I wonder if this also includes the 25% that you can buy as a top-up during redemption.
I will certainly be keeping an eye on this one.