Collaboration changes focus. This is very important...and has many implications for elearning application developers as well (i.e. LMS): "Almost 15 years later, both user interfaces and back-end services have morphed to meet the needs of users. Integration seems to have given way to modularity. It's fair to suggest that the most drastic change in the way people work together has been the expansion of IM, which has evolved from a rogue application that small workgroups might adopt on an ad hoc basis, into one of two important load-bearing walls of the collaborative ecosystem."
LMS' shouldn't be everything. They should be specialized...and allow connection to other modularized programs and applications. I've previously used the term "connected specialization" to express this idea. The more complex learning management systems become, the less usable they will be to the average designer/learner. Integration is an over-hyped concept. It has appeal in theory, but practicalities support the value and flexibility of modularized functions.