Check out this article talking about a well-known messaging issue with Android phones. Essentially, this bug can result in sending your text to the wrong contact. I've personally experienced this problem. Thankfully, I only texted Keyar instead of another friend about something generally unimportant("When are you coming over?"). I was quite confused when Keyar said, "Why did you ask me when I was coming over?" from the same room as me.
Really, Android?! You can't even get basic messaging working correctly? Really? How the hell did this slip through their QA? Not impressed. You can't release a program with a serious issue like this. To make things even worse, this bug has been a known issue in since July, and until yesterday(!) it was marked as a 'medium' priority fix! What the hell? Thankfully, it's now reassigned as a 'critical' priority bug. That only took 6 months. This certainly doesn't look very good on open source development.
I have no idea how Android is doing so well in sales with issues like this. A phone that can't reliably communicate is useless. I can only imagine how many problems this bug has caused for Android users everywhere.
Dear Google, be better.