Quoting from Network World:

...

The Forrester report -- "x86 virtualization adopters hit the tipping point" -- was released Friday and is based on a survey of 275 enterprise server decision-makers.

Previous Forrester research actually showed higher adoption of server virtualization, with 50% of IT shops using the technology in production and pilots in 2006.

...

The latest report finds that 37% of IT departments have virtualized servers already, and another 13% plan to do so by July 2008. An additional 15% think they will virtualize x86 servers by 2009...

Read the whole article at the source.

The virtualization.info Virtualization Industry Predictions has been updated accordingly.