Freeformer has the ability to print character sheets and nametags.
These both have qrcodes printed on them. These can be scanned by most network connected smartphones and tablets.
The code on the character sheet is a web link which opens an electronic version of the players character sheet. This also logs the player into that game, so when they scan the code on the nametag of another player, they can see the what they know about that particular character.
As well as using the qrcodes, the player can also find the character information through provided links on the main character page, and also through interactively entering the character id (printed below the qrcode on the nametag.