I, too, can use my Blackberry if the need be for the occasional listing. But, if the homework is done correctly, one really shouldn't need to pull up listings when out in the field with clients.
I think some technology is just over-rated to begin with, as though EVERYONE must have one or you're weird. It's all consumerism, consumerism, consumerism. I don't buy it. It looks impressive, but, I still don't buy it.