For my future reference. DimDim is an open source web conferencing and meeting software with the following features:

• No Install to Host/Join meetings
• Easy Share Screens&Webpages
• Audio & Video Conferencing
• Present PowerPoint and PDFs
• Private & Public Chat
• Whiteboard & Annotations
• Record and Playback Meetings
• Open Source and open APIs
• SynchroLive Co-Browsing
• Free Recording & Archiving
• Mac & PC Screen Sharing (no Linux??)
• Multiple Presenters
• Free Teleconferencing Calls
• Secure, Private Meetings
• Faster and Easier than ever
• No Install to Host meetings

It’s available as a vmware virtual appliance or for those of you using Qemu / KVM / Xen, you should be able to convert the image using:

qemu-img convert -f vmdk -O qcow