Hi everyone. We are currently running 2010 in non hosted mode. We currently host 5 different companies in this environment with plans to scale to 30-100. As far as we can tell the only limitation is with the gal... Which will be addressed in sp2. The alternative, hosted mode, contains way more gotchas. Why on earth, for our requirements, would I introduce more complexity with less features as suggested by those who say only hosted mode supports true multi-tenant. The companies using our solution will not be larger than 100 users, otherwise we would dedicate an exchange server for them. Am I missing something and there is more risk than I am understanding. I remember when vendors use to say running applications virtual was not supported. Is this a similar situation with multi-tenant "only" being supported in hosted mode.