What is new in Microsoft Dynamics CRM 4

From http://blogs.msdn.com/crm/archive/2007/10/03/titan-first-look-videos.aspx

• Multi-tenant web services
• Duplicate Detection
• Windows Live ID Authentication with a SOAP web service
• New relationship features
• Workflow
• Multi-Lingual User Interface (MUI)
• Plugins/Assemblies in CRM 4.0
• Windows Workflow Foundation Activities
• The CRM Live 'experience'
• The Internet Facing Deployment (IFD) 'experience'
• Outlook Client enhancements
• Task Management
• Web Import
• User Management
• Multi-Currency
• Metadata API
• Lookup Auto Resolve
• Translating the User Interface
• The Resource Center
• Mail Merge
• Offline SDK