This is why I no longer work in Apple retail. I loved it when I started, which was just before Steve died. While Apple stores have always been known as "legendary gathering places," times have changed, and I know of no geek who meets other geeks at the Apple Store to "hang out." The notion of making all the employees appear the same to the customer is good in theory, because being able to ask any employee for help is awesome, but this usually only works if the store is not busy. But unfortunately, the employees are either too busy with the impossible demand or they are not qualified to help the customer because that's not their role (how does the customer know??).
Having both a dedicated POS area for checkout AND being able to use iPhones on the floor to ring people out would probably make more sense. Also, clearly separating the sales and Genius Bar area may make it easier for people know where they are. I hope they can finally crack the problem.
I was a Creative that trained customers in the One to One program. While it no doubt cost Apple a lot of money, it truly set the customer experience above the rest, which, in returns, drives loyalty for life. It was sad when they did away with the program. Before I left, it seemed anyone could get a job at the Apple Store. I would cringe when fellow employees didn't even know basic things about Apple products.
While this sounds arrogant, you only bring other Apple loyalists into the club if you know what you're talking about and clearly love the products. Still, Apple Stores are still better than the alternative. Long live the fruit stand.