The text shown is basically an e-mail from a member of the Swedish Academy (http://www.svenskaakademien.se/web/en.aspx is their English site) confirming when the letter 'W' was first added to the official Swedish dictionary.
That dictionary (http://en.wikipedia.org/wiki/Svenska_Akademiens_Ordlista) is generally considered normative for the Swedish language, and thus this inclusion can be counted as some kind of "official" statement that yes, the Swedish alphabet does indeed include the letter 'W'.
Previously it was only used in names of people and places, and grouped with 'V' for sorting purposes.
That dictionary (http://en.wikipedia.org/wiki/Svenska_Akademiens_Ordlista) is generally considered normative for the Swedish language, and thus this inclusion can be counted as some kind of "official" statement that yes, the Swedish alphabet does indeed include the letter 'W'.
Previously it was only used in names of people and places, and grouped with 'V' for sorting purposes.