At the risk of seeming even more tangential than usual, the "access to their data" notion made me think of health care records (at least here in the States). In theory it's my history, recorded by my doctors and other practitioners; in practice, it's nearly impossible to get even paper copies for myself, let alone have the information reside in a location over which I have control and to which I can control access -- like when I go to a new doctor, specialist, or provider.

With fewer people staying with employers for many years, and with a person theoretically being more in charge of his learning, it makes great sense to be able to take with you virtual notes / products.