I can confirm the weird emergency broadcast text. I happened be lookin at my phone, when it showed up in my push notification bar. Then it majically disappeared, no message left in my messages either. I had heard the gov had asked for an inside line to our phones, but this creeps me out a bit.
Also, my texts have a different issue since update, I get a error code for a few of my contacts now about having to use (10 digit #) whether they have area code or not... boost & samsung are clueless & reckemend a factory reset? I asked the tech wizards, how that fixs an os update??? Such genius they have anwsering the phones.