I vote that you give your wife the Glo HD, you keep your flat Aura and use the Mini at work. Still win/win.
And I'm really tempted to pre-order as well, but I'll wait to see if there are any initial production issues (like the PW had with its rainbow screen colors). I don't expect there to be any though. I really don't need another reader or even a new reader, my Glos have been perfect. But it's a new toy that I'm sure I'll like... it's hard to resist just on that basis!