B&N announced today that the in-store Wifi (supported by At&T) will no longer be restricted to AT&T customers. Think of what this means for buying ebooks.
Quite some time back a member here on MobileRead said that he would like to be able to browse the paper books on the shelf, and then buy the ebook while he's still in the store. Thanks to free Wifi, B&N just made his idea possible.
Whoever came up with that idea should stand up and take a bow.