Just tried beta apps. Here is what I would add. When you are using PC and typing in the chat I would send message with ENTER button instead of using my mouse and pressing send the message. It´s much more convenient that would be also nice to have on mobile as well. Next I would use search message for searching my contacts (connections) though it would be better to list all online connection (contacts) on the left side just under search field. This would work better and you would save great deal of time if you put it all in one spot! This is CRITICAL!