VMWare just announced their Workstation 6.5 Beta Program. The short news:

• Use Unity to integrate your guest apps with your host (This is a great feature from VMWare Fusion and I'm very excited to see this come to windows/linux)
  
• More Powerful VM Record and Replay
  
• Support for Smart Cards & Smart Card Readers
  
• Enhanced ACE Authoring
  
• Link State Propagation Networking (network can pop from one network to another without having to release/renew on the guest)
  
• Improved 3D graphics Support