I intend to do some virtualization with either of the two technologies: Ubuntu Enterprise Cloud and VMWare.
I would like to know the advantages (e.g. main features missing in the other one, long-run, financial advantages, support...) of using the Ubuntu Enterprise cloud compared to VMWare.
Thank you.
UEC does employ KVM virtualization however! I would think VMware's best competitive advantage is the availability of mature GUI management tools, and UEC's best competitive advantage is being open-source, and providing a compatible EC2 API interface
UEC is not a visualization suite. VMWare is.
http://www.ubuntu.com/cloud
UEC allows you to creates a cluster of machines and distribute load across them. VMWare allows you to create virtual machines to take advantage of powerful hardware.