This post by Dan Kusnetzky highlights one of the things that open source and free software projects have to contend with: Free isn't enough to carry the day.
A key challenge faced by any open source project is getting mindshare. Itメs a truism that if decision makers donメt know about a product, they wonメt consider it. If they donメt consider it, theyメll select other approaches. There are too many people shouting out their own Xen messages.