I was wondering if any of you Droid 4 users have had this happen. I sent out a combination Facebook status update and Tweet simultaneously via test message as I've done for years. I sent it out this afternoon using my Facebook e-mail for status updates and the 40404 number for Twitter. Since that text/tweet, I have been getting "Whoops! You already tweeted that." sent to me as a text message about every 30 seconds, over and over and over. I have rebooted the phone several times. I tried sending one more tweet via text message to see if that might stop it. Cleared the cache on both the Twitter app and Texting app, uninstalled Twitter and reinstalled it. I called Verizon and they said they are not seeing any text messages coming from my phone since that tweet, so the Twitter server is sending this message to me ad nauseum. Has anyone had this happen or heard about it? What the heck and how do I stop it???