I've been developing International Virtual Courses for some time now, call them Virtual Campus, Virtual Mobility or what you like.
In one of my projects (Emove, EU - Life Long Learning), we concluded that VM offers four major advantages:

• It contributes to the quality of the academic education and lifelong learning for all students. Virtual Mobility is not restricted to a specific period of time or space, which is a key-advantage for any activity in lifelong learning.

This week, 40 students from 4 countries finished their participation in the International Marketing Course. For me, as organizer of the event, this meant prompting all students to fill in the Evaluation Form, and anxiously looking at their opinions to see how to further improve this course.