#15 - April 26, 2011, 8:18 p.m.
The change in 4.1 allows the item to be sent to another character, on the same realm, on another account, that's contained within the same Battle.net account. So if you have two WoW accounts on the same Battle.net account, you can now send items between accounts to characters that exist on the same realm (including cross faction).
It's admittedly pretty limiting. We still want BoA items to truly be BoA, it's just something that will take quite a bit more development time and technical hurdles to overcome. This is one step in the right direction, though.