I've tried searching for awhile for this topic, but I couldn't find a solid discussion. But it seems like others have had this problem.
When I am having a conversation over text messages, I notice I don't get a reply after it's been said it has been sent. I then find out later, the person never got my reply, but my Droid said it was sent normally with no issues.
It's been happening frequently, I don't know if it's the person I'm texting & their phone provider. Or just my phone. Or any applications that could be causing this? Any suggestions or apps that can help notify me of the text being delivered all the way through or anything?