Sounds nice, but not real sure of the benefits yet until I see it in person.
Ditto.
I have one of the old 30" behemoths and will use it for 5+ more years. I just don't get the overall benefit of "retina" display on a computer, unless it is used for professional video/image work. It's NICE, but not near necessary or beneficial for most everyone. No rush to get such device, unless I buy a new computer when such resolutions are available and inexpensive.