Actually, it's not Afilias that will acquire .org, it's ISOC. The Internet Society (ISOC) has indicated for many weeks it will bid
to become the registry for .org. This is not surprising. The news here is that they teaming up with Afilias to run the back end.
I suspect ISOC will be granted the bid with little fanfare.
None of the not-for-profit organizations bidding on .org would have run it themselves - created their own functioning registry back end - so it only makes sense for them to team up with an existing registry.
You could choose Neulevel, a partnership between NeuStar and Melbourne IT.
You could choose to leave it at Verisign - though that's not likely.
You could choose Global Name Registry, though the way they have run .name to date is not particularly encouraging. These guys are privately funded with venture capital. Verisign will own them soon...
You could choose NeuStar - though they have their hands full with .us - they would probably do fine.
You could choose Afilias - a global consortium representing 17 countries. They now own their back end services outright, which they purchased from Tucows, and though you can certainly fault them with the .info launch fiascos, they do run a solid registry service.
The real difficulty with .org is not going to be in who is operating the back end registry, it's who is setting policy. Afilias is the back end registry partner - not the policy body behind the new .org. ISOC would be the one setting .org policy. They are probably one of the better organizations around the Internet to take on that role.
-t