The claim of IPAD as expensive computer is totally wrong. It's only a few days salary of a sales person. If it can allow customers to DIY on finding answers or info they want, the savings of sales person's salary is surely more significant.
Love all this talk about "I's" whatever and the wondrous things they can do. It's almost all irrelevant to the retail shopping experience. Apparently no one has observed how "shopping/buying" occurs. The techies comfortable with seeing themselves in all the different Levi's/Schmevi's using the latest fastest app will simply stay at home an buy over the internet. The "shoppers" to whom shopping is as much an entertainment/social experience go with a few friends and spend the day from store to store, pinching, poking, prodding, and stretching the merchandise. Studies show 40-50% of clothing purchases are impulse buys. They may pick up the "toy" and play with it for a bit, but quickly revert to "normal" shopping.
The "I's" are really good and useful in hardline but soft goods is another story, where a purchase relies as much or more on "touchy feely unexplainable" than lets' say, a tool that you can compare specs and accessories until you're blue in the face.