Kas Thomas at CMS Watch – Vignette bets big on beta-SaaS:

"For getting a handle on major new functionalities -- and for finding out quickly whether your content contributors, admins, power users, and developers are going to run into any showstoppers -- the VVE approach will likely prove useful.

Meanwhile, it's a potential cost- and time-saver for customers. There are, after all, significant hardware and software implementation costs involved in standing up even a relatively modest beta test environment. With a hosted beta, the vendor eats the setup and operational costs. The customer comes in with guns blazing. Everyone gets where they need to go a little bit faster."