Hmm… One tweet just made it through to twhirl…
Twitter has been down for some time now and since the outage is long enough to produce a long list of recent google results, I expect people to talk about this quite a lot after things roll back to normal (and of course during the crisis).
I also noticed some glitches on Facebook at the same time though it seems mostly responsive all over.
This seems to be a likely DDoS attack on Twitter and possibly Facebook too. It will be interesting to see how the two concurrent issues (twitter’s + facebook’s) relate to each other.
I’ll follow mashable on this one for the moment…