This document discusses plans to hold a hackathon called Apps For Flanders, with the goal of stimulating the use of open data in Flanders. It notes that there is a gap between technical experts and policymakers regarding open data. It proposes that OKFN Belgium could help bridge this gap. It also describes a potential project idea for the hackathon - a map app that helps users decide where to live by taking into account various open data parameters like taxes, transportation, schools, etc. It suggests technology choices for this project like OpenStreetMap, JavaScript, Leaflet and GeoJSON. Finally, it states that 2012 could be the year of open data in Belgium.