It'd be really nice if the chat window tabs could be reordered. When you click, before they switch to the window you selected (as of now it switches on the mouse
press and not release), if you dragged the mouse towards the left or right, onto another one, when you released, it would move the tab over to the position you selected, but not select the tab you dragged.
Sorry if I made that unclear, but if you look at Firefox's tab-reordering handling, that's pretty much what I meant for it to act like.