The phone is the motorola droid razr. It hasn't happened to any of my other apps, and I don't put any of my apps on my sd card. If it happened with older versions of android maybe it has something to do with using my motorola lapdock. Email and eo are the most likely apps I'm working with when using the lapdock, because I'm using its keyboard to write. And the lapdock does tend to disconnect from the phone in a glitchy manner. And come to think of it, I think the last couple months only involves ice cream sandwich and the new lapdock webtop os.
eb