I would love to see an easier way to whisper someone rather than typing "/tell excessivelylongname" every time. Especially with a limit to message size. Perhaps set a button (tab?) to open a chat line (except in lobbies where there is always one) and automatically type out "/tell (last person you whispered)" for you?

Also, it'd be nice to be able to whisper people outside of your game/lobby. Say Stumblebee and I have a match planned but he's playing Xlom, and I have to go, I can get in regular chat and whisper him while he's in a game.