I am pushing for the practical interests of flexible VM manager since about 5 years now. In fact, I have started to talk about that during my Phd. thesis.
Since about 3 years now, I tried to write a good paper about this subject and the fundaments of my research prototype Btrplace. After tons of rejections, and even more tons of improvements, my paper finally passes the wall. It has been accepted to a special issue of the IEEE Transactions on Dependable and Secure Computing related to Cloud Computing assessment. The manuscript should appear in April 2013. The preprint is however already available here.
Last, I am currently at the national conference COMPAS. Yesterday, I talked about Btrplace at the workshop on SLA Management in Cloud Computing. The slides are available here.