Comment Re:Questions (Score 1) 134
One of the biggest potential features (and people seem to have missed that) is how failovers could get to work.
So let's you have multiple Xen hosts, running multiple OS's on them. Should a Xen host fail then the OS's and applications running on it migrate to another Xen host dynamically without any noticable slowdown.
Similarly think UML, but fast enough to actually replace ALL servers. Not just development boxes that you didn't want to purchase hardware for, but all servers in an enterprise could reside on Xen hosts. So instead of having 100 servers most running at 30% utilisation but can't merge them due to applications not playing nice or .. or ... Xen solves that.