Being able to use a SWU without calling in is something they should have implemented like 5 years ago; it's the #1 reason I call AA. I wonder if this will be accompanied with making your SWU balance more reliable, rather than sometimes being a few days out of date. Part of me wonders if this will make upgrades harder if SWUs are easier to apply, but I doubt a phone call was too big a barrier for someone wanting to upgrade.