not sure about that...
>it's going to be a very long time before we see wireless charging from public booths - if indeed we ever do
Surely the fact that there was no common standard for cables until recently is precisely why you don't get many public areas where you can charge phones? That, and the fact the user's phone is tethered to a 18inch cable for 20 minutes means it was never going to catch on.
Taking transport as the likely application - you don't want train managers or flight attendants having to sort through loads of different cables for the customer - and so you have a booth in the train station or airport - who have to carry, maintain or replace 10's of different cable types - never was going to work.
Now we are starting with a common standard for wireless power which developers and service providers can implement without regard for target device - So instead, your train table or plane tray has a 'QiZone' <pauses, registers domain name, continues> marked on it where your road warrior can charge their blackberry or iPhone - (and lets face it, how many people _don't_ get out their shiny status symbol and leave it glistening on the table whilst they munch on their baguette - might as well charge it at the same time).
Hotels are your other likely ground - "don't bother bringing your euro adaptor - all our hotel rooms are fitted with QiZones in the desk and bedside tables"
And what's to stop car manufacturers piling in - most cars are beginning to come with integrated bluetooth options. Stop all this fannying around with pre-wired mutli cradle systems, and just add a Qi circuit to the car's wallet tray instead - and probably charge £500 for the option...
If Qi can gain enough cachet with any of the major manufactures, I suspect it will catch on pretty quickly with service providers as a cheap value-add. The addition of a metering method, could make it a revenue stream to boot.