Quantum teleportation lets you send quantum information over a classical communication channel by using previously-shared bell pairs (you can send 1 qubit by "consuming" 1 bell pair and sending 2 classical bits). I was wondering what sorts of hypothetical applications this would have, similar to super dense coding letting you "store" bandwidth. For example, if you had a very high latency quantum communication channel but a low latency classical channel then quantum teleportation lets you combine them to get a low latency quantum communication channel. Or maybe you and a friend don't have a quantum channel between you, but there's a lab between you that can send bell pairs to each of you. Quantum teleportation let's you turn the lab-to-you+lab-to-friend one way channels into a you-to-friend two way channel (again assuming you have a classical channel). So, we can use QT to centralize bell pair production. But these seem pretty tame to me. I'm also not sure what I would use a quantum channel for, besides cryptography. Any ideas?