I'm using TS3 since monday, and I like it. This phonetic nickname thing is really cool. But, if you don't use your headset for a short time, you can't hera, that anybody joins the server, so I think, that a small popup window on the lower right opens, when a player joins, equal if registred or not. And, if somebody doesn't like this popup, there should be a button to deactivate it. And for all those, who think that their popups appear too long, should be a popup fade controller or similar...

So, that's my suggestion for an already good working tool.