Since last night, I have not been able to log into a few of my twitter apps. They are SimplyTweet3, Twittelator Pro, Twitter for iPhone, and Oosfra. Each of them say my login credentials are invalid, yet I can log into twitter.com just fine, as well as tweetdeck on my computer, and my blackberry twitter apps. This happened once before, yet the problem resolved itself when I deleted and reinstalled the apps. This time I have deleted and reinstalled, yet the problems still remain. Twittelator said something about a http 401 bad gateway. Anyone have any ideas about how to fix this or have similar symptoms?