In July, as a pilot project, Finavia is offering portable chargers for passengers at Helsinki Airport. What a nice way to allow passengers to move freely (i.e.
use buy other services) while charging their phones and tablets. Since many keep their boarding passes and other information at their phones, it’s good that the battery is not too low on a critical moment like boarding.
But… there’s a problem: they’re not iPhone compatible. Although I think it works with your own whatever to USB cable.