Thanks.
I am using a couple public domain pixel art fonts, which I also modified myself a bit (fixed some letters, added some special signs etc) :)
The fonts are not included in the pack though, they are merely for demonstration purposes. Any font works with the pack.
Bitfontmaker2's site is great for finding Pixel Art Fonts. http://www.pentacom.jp/pentacom/bitfontmaker2/gallery/
The basic one I used for the mockups is named Questgiver: http://www.pentacom.jp/pentacom/bitfontmaker2/gallery/?id=947