At minimum, the fact that the core functionality is available as open source gives me some additional confidence in the platform's long-term viability: http://

At minimum, the fact that the core functionality is available as open source gives me some additional confidence in the platform's long-term viability: http://www.dimdim.com/opensource/dimdim_open_source_community_edition.html http://www.dimdim.com/opensource/dimdim_open_source_communit... Even if the company goes away, others can use the Community Edition source to host their own instances of the service. Also, security reviews and enhancements can be generated from the bottom up by the community, instead of being 100% dependent on Dimdim.