Mobile Learning is about self-actuated personalization.
As learning practices and technology tools change, mobile learning itself will continue to evolve. For 2013, the focus is on a variety of challenges, from how learners access content to how the idea of a “curriculum” is defined."
Via Ana Cristina Pratas, John Evans, Heiko Idensen
12 Principles of Mobile Learning
I would add: "on-the-job".