This document summarizes a keynote presentation on using mobile devices to support contextual learning. It discusses concepts like mobile learning, location-based learning, and augmented reality. It provides examples from two European projects - CONTSENS and MLeMan. CONTSENS involved developing mobile tours of historical sites. MLeMan aims to establish standards for mobile learning managers. The presentation evaluated student feedback from a trial mobile tour, finding it enhanced learning by making information relevant in context and promoting active, self-directed thinking.