What model iDevices are you using? I usually wait at least a week for major upgrades to these devices,
much longer for OS X upgrades.
We have two iPhone 5's, and two iPad 3's (I think), I was given the one with
out cellular when I bought SWMBO one
with it.
Our iPhones are starting to show battery end-of-life behavior, but I sure hate buying another one, but my wife is making noises about that. Oh well, it's only money, and if she doesn't get it now, she will later!