A brilliant piece of work by Ars Technica's Casey Johnston.
The store reps were hit and miss, so as I always tell people: Don't take sales reps at their word. Even if they're trying to be helpful, they'll often be wrong. You're better off getting the information from a friend or family member who keeps up with this sort of thing. It's not sufficient to just have someone who is tech savvy come along with you because even if they understand the technology well the reps can (accidentally or deliberately) provide false information.
It's good to see a third platform finally getting a little bit of a push. Hopefully by some time in 2013 this will mean we have three truly competitive phone platforms rather than the current two.