am desperately looking for a concrete example which shows how to implement a vm-based cloudlet for mobile computing. so far on google am most of the time only getting info concerning The Case for VM-based Cloudlets in Mobile Computing, but am looking for something more technical concerning this, and also a demo or example of how it is implemented. anyone can pls help me?

From what I've read, it seems that this is in a research and experimentation stage. It may be that concrete examples don't exist yet. The theory seems quite straightforward so if you are desperate, you could try building something with the mobile app acting as a thin client.