WowAce

Now that we can mail items/gold to our other faction characters on the same realm, it would be nice if they showed up in the "alts" drop  down also.

It would be nice to have names of those alts filled up automatically when I start typing them, too.

I have been removing all the " and f == faction" from BlackBook.lua to get this behavior. It would be nice not to have to remember to do that each time there's an update, though. :)

+1  please update so we can see same server other faction alts easier

I have given this one a bit of thought and the alts menu is designed for showing players who belong to the same realm and faction.  The all alts menu already covers the case where characters are in different factions.  So, you can simply use the all alts menu to access these opposite faction alts.  Also, you can add them to the contacts list if you want to make it even easier to select them.  So, I am going to decline this request.