"Many routers offer 802.11b/g, and many now offer 802.11n too with the option to run the latter at 5GHz instead of the increasing crowded 2.4GHz band. While that might just seem like backwards compatibility it actually means the router is running two independent networks which happen to share the same name, and that's what gets the iPad confused."
Erm. OK... My cheapo $40 wifi card can manage that just fine so how come Apple's $500 status symbol can't? Maybe that's what they mean by 'magical'?