One charger fits all?

Just read this on CNN.

Blackberry will be amongst the devices in Europe.

Europeans realize dream of a single charger for all cellphones - CNN.com

It's possible. Everyone uses LIon batteries now so there's no reason we can't all use one single charger. Most devices have a wide tolerance for charging voltages and currents so it's not hard for the phone companies to implement when they finally come to a consensus.