I was having the same problem, but I saw my friends who cross-post to Facebook getting tweets in. As nbpoole posted, they were having some issues, but also, bec

I was having the same problem, but I saw my friends who cross-post to Facebook getting tweets in. As nbpoole posted, they were having some issues, but also, because of the distributed nature you'll find a Twitter outage to often being a rolling blackout sort of thing. Also, they do throttle requests, something like several hundred within an hour, and I hit some message like that the other day, that I was over the API call limit, but I think that too was an outage of some kind.