2160p just doesn't roll off the tongue! People will get used to it - they've managed to deal with the nebulous ideas of "SD" and "HD" and "Full HD," which I would guess are fairly well used if not the dominant terms.

I'm more worried that there's going to be a 4K/"full 4K" thing because of the aspect ratios!

But mainly I'm just pumped to have a 4K monitor. As soon as they're as good as the mid-range Dell Ultrasharps in terms of color and options I'll be making the switch.