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Even when course materials are made available for free in electronic format, some students still prefer a print copy (hint: it's not just mature-age students). We either need to accept this reality (how many of us prefer to read intellectual materials on paper rather than on screen?) and accommodate it, or work out how to prepare "print preferred" students to engage deeply in an electronic environment.
Other workshops have probably discussed equity of access to mobile devices, but it's an important enough issue for La Trobe to raise it again. An important part of envisioning a future revolving around tablet devices is engineering a system for equitable access to devices for all students, especially the more disadvantaged students. See this not merely as a hurdle but as an exciting opportunity to find a workable solution to the challenge.
Producing electronic resources is by no means cheap; it still requires human time. But the benefits of doing so are great: greater control over content; the ability to keep it up-to-date easily; the ability to provide it to students for little or no cost, which improves student engagement and retention - a great incentive in itself.