> can do multiple high resolution virtual displays
In most applications, it then would need to compete on price with multiple high resolution displays, and undercut them quite significantly to break the inertia of the old tech (and other various advantages - like not wearing something all day and being able to allow other people to look at what you have on your screen).
I take your point but living in a London flat I don't have the room for multiple high resolution displays. Nor are they very portable, I have a MBP rather than an iMac because mobility is important.
I do think we're 4+ years until it gets to the 'iPhone 1' level of utility though, so we'll see how committed Apple are to it.
In most applications, it then would need to compete on price with multiple high resolution displays, and undercut them quite significantly to break the inertia of the old tech (and other various advantages - like not wearing something all day and being able to allow other people to look at what you have on your screen).