Even more of a disaster with iMessage group threads. I had a thread w/ two friends, and when I switched to my Moto X, I didn't realize that I was no longer receiving messages on the thread from ONE of them.
Turns out, one of their iPhones recognized that it should start texting me, while the other's iPhone kept iMessaging me w/out delivering failure reports. So frustrating that I forced them to get WhatsApp!
I've been using the Spreed Chrome extension (http://goo.gl/ki49wl) for about a week. They've recently added an orange focal letter (much like Spritz's red one) in that time.
Squirt has a cool UI and works across browsers, but I like Spreed's ability to see progress as I read and the keyboard shortcuts. Looking forward to seeing this tech pop up more and more and evolve!
Turns out, one of their iPhones recognized that it should start texting me, while the other's iPhone kept iMessaging me w/out delivering failure reports. So frustrating that I forced them to get WhatsApp!