There's a problem on one of my servers that appears to have started sometime yesterday. Haven't found where the problem is exactly yet.
How it manifests -- you post something to Radio2, but it doesn't appear on Twitter immediately.
Update: I've found a problem, but it appears to only relate to my linkblog feed. If you've seen a similar problem in the last couple of days please post a comment here. I saw a comment in Anton's feed that made me think the problem wasn't just with my feed.
The problem was that it was pinging the wrong URL, not the one that I had set up to connect to Twitter. The mystery is why it started behaving this way now? Regardless I "solved" the problem by adding a callback to my account on Shreveport that pings the other URL when I post, and now we're back to immediate synching. If you have a problem like this with your feed please click the Green Button.