Apparently, the Twitpocalypse is upon us all!
Basically, every Twitter message sent has a unique id. Once the id passes 2,147,483,647, there could be problems for some Twitter client apps. The id has already passed this value, and Twitter.com is still functioning properly.
However, at least one of my favorite apps for the iPod Touch (that is the correct name, by the way – there is NO SUCH THING as an “iTouch”), Twitteriffic appears to have been bitten by this issue. I hope they get it fixed soon, because it’s a pretty sweet little app.