They say banning shops and bars from selling drinks for less than the tax paid on them will cut crime and set a "base price" for the first time.

BBC: Minimum alcohol price levels planned by coalition

In Europe I've seen countless mobile banking ideas over the last decade - from the soft drinks machine in Helsinki where you paid by SMS, to the phone which doubled as a travelcard for London's transport system, and innumerable schemes involving Near Field Communication (NFC) technology.

BBC: Mobile money - has its moment come?