Well, for me, I care about Calgary.
That said, I already have Canpass which already takes care of me on the way home. But if I understand it correctly, when I get Nexus, I'll be able to miss a bunch of lineup and BS when I'm trying to fly out too.
I was told (which isn't the same as knowing) that Houston will have it. I have a NEXUS sheet that shows enrollment centers. None of them seem of much use to me or most others. lol But then, I suspect there is some belief that this is going to work at border crossings.
Sorry I brought it up. Wouldn't want my application to get held up because they become overwhelmed with apps.