Maldistribution is an enormous problem, yes. But I'm not sure that material abundance is already sufficient...
There is enough to feed everybody, yes (and with current population projections suggesting that the world population will stabilize at 12 billion in 2050 the Paul Ehrlich vision of mass die-offs in South Asia will not come true). But at the moment there isn't enough to give everyone once-a-year vacations at Kapalua Beach in Hawaii a broadband connection to the internet, or a large-screen TV-VCR on which to watch their own copies of "Don Giovanni," "Casablanca," "The Seven Samurai," and "The Rules of the Game" when it strikes them.
And then there is the problem of creating people who will realize that they really want to watch "The Rules of the Game" instead of "Survivor IX: Eating Rats and Backstabbing Your Fellows in the Amazon," and realize that they want to be connected citizens and species-beings rather than anomic liberal individuals.
I don't know which problem--the problem of redistribution, the problem of abundance, or the problem of taste--is a bigger block to utopian aspirations in the long run. I do know that we can make progress toward solving the problem of abundance, but that we don't have a chance in hell of *ever* moving toward the redistributions across national borders to solve the problem of maldistribution.
Brad DeLong