It's taken me two years to get round to figure out how to send a PDF file to my Kindle. This is an experiment. I've also sent it to an iPad and may even follow with an iPhone.
If I can combine a day walking on the South Downs with some stops to read a paper then I kill several birds with one stone; most importantly I get through the reading and don't feel I've been confined to the house. The dog goes for a walk, I enjoy the fresh air and exercise my legs.
No need for fancy software or an MA in Instructional Design either. This is like taking a paperback with me, or a file of papers in an arch-level file. Which is how I often read and revise: up a hill, in the woods, by the beach. Its that or not get it done at all as hanging around the house I find it too easy to get distracted (and I don't have a study or even a room of my own).
Mobile learning sounds good to me. I think I'm going to record some revision notes as I spend a lot of time walking or on buses.