All this does is give the player a option of open the auction house menu where ever (including loading screens, lockdown and blast networks). I have four ideas on how this will be implemented.
1. You get the a button (with hot key and all) in the options menu straight up.
2. A portable auction house item (communicator most likely) is given to you in one of the early talk missions, by the auction house, command or lab NPC's.