If you are on the phone in an application such a the browser or YouTube and receive a text message with Lollipop you now get a heads up pop up message. I noticed when someone replies to a group conversation, the pop up window lists everyone in the group conversation thread, but doesn't specify who sent the message. Therefore this makes the option to "reply" via the heads up pop up message useless, since you don't know who you are replying to. I tested it and if you reply, even though everyone in the conversation is listed in the heads up pop up message, the reply only goes to the one individual who replied to the group conversation. This doesn't make sense? Is there a setting to adjust this? Thanks