Literature informing tablet based interactive etextbook project

I have been doing a catch up on literature that forms the foundation of the interactive etextbooks on tablets project. The four theoretical approaches to learning underpinning the project are mobile / mlearning, learning as students make meaning (constructivism/connectivism), situated learning in simulated workshops/workrooms and leveraging on multi-literacies and multimodalities.
 Some recent material to explore in deeper depth over the next few weeks pertinent to each approach, and to add to existing literature include the following.

mobile learing - The Joint Committee for Information Systems (JISC) have put out the recent wiki document covering an overview of mobile learning, strategies, pedagogy, technical considerations and case studies. A sort of one-stop shop to find out about what is mobile learning and how to implement into educational settings.

Also of interest is mobile usage and Derek's blog provides a cartoon to bring together data on how American's are always connected via their mobile devices.

Constructivism - George Siemen’s work on connectivism has been introduced as a concept that updates constructivism into the information era. A recent presentation (on sensemaking and wayfinding)provides a summary of some of his recent thinking including how connectivism builds on and extends traditional teaching/learning approaches into the digital era (slide 10).

Situated learning and multi-literacies/ multimodalities - A recent post from Artichoke, provides much food for thought plus ideas to follow up on. She discusses the challenges of assessment for learning in the digital age and provides an example from a NZ primary school context,  with usual caveats and provisos.  All in, the above provide me with ideas on how best to structure the literature review section of the report and to make the links between mobile learning and the affordances mobility/mobile hardware/multimodal apps, provides for students to record their learning within simulated work environments.