What Happened to Twitter?

A few hours ago, Twitter's homepage was redirected to a splash image, saying the site had been hacked by a group calling themselves the "Iranian Cyber Army." Not much is known about the attack yet (because, it just happened), but here's what can be shared:

- Here's a cached image of Twitter while it was "under attack": http://digital.venturebeat.com/2009/12/17/twitter-is-down-is-the-iranian-cyber-army-responsible/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Venturebeat+%28VentureBeat%29
- The same image apparently is found on other web sites, but most notably on Mowjcamp, a Iranian Green Wave web site. (www.mowjcamp.com) (news source)
- TechCrunch commenters theorizing this is a DNS-attack-and-re-direct. Meaning? The hackers may not have touched the databases, rather, they took the virtual address and sent it elsewhere. (http://www.techcrunch.com/2009/12/17/twitter-reportedly-hacked-by-iranian-cyber-army/)

UPDATE ONE:
2:45 a.m. EST - Twitter released this statement:

We are working to recovery from an unplanned downtime and will update more as we learn the cause of this outage.
Update (11:28p): Twitter’s DNS records were temporarily compromised but have now been fixed. We are looking into the underlying cause and will update with more information soon.

http://status.twitter.com/post/288586541/working-on-site-outage 

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That's what *I* know right now. But I'm about to go to sleep. You'll probably know more than me, really soon.