I just released another mod called Useful Extras on WoWI (the link is on the sidebar for the portal here along with Looter) basically its another small lightweight mod, but adds a number of (hopefully) useful features, such as a basic in-game calculator, a number of toggleable auto-options such as auto-accept group invites, summons, or resses from people on the leader (custom list you can add or remove from) list or your friends list. As well as whisper commands, have someone on the before said leader list (or friends list if the allow friends toggle is on) whisper commands to have you (or them if they use the mod) follow, or mountup (ground or air, it will mount your first availible epic ground or flyer, or if none are availible first availible regular ground/flyer).

Also there is a command to use the in-game color picker which you can use to get the normal RGB value of the color, or the WoW value which is used in the xml/lua to display a certain color for the text, as well as being able to see what your selected color would look like in chat, because the color you select isn't what you always get in WoW. Though the color picker feature is mainly useful to mod authors.

Update: Uploaded the 0.02b version which adds the /ue add, /ue remove, and /ue list commands to 'help' printout, they were already implemented but I forgot to add them to there, they are used to add or remove someone from your leader list or to list who is in there. Also added checks for the whispers that get sent for following and when following is lost (normally whispers the person you follow with 'following you', or when follow is lost 'follow broken') for if the AutoFollow toggle is on, and if its not then to not do any whispering.