delaware a tax haven?

A number of states are upset about how corporations are using Delaware Holding Companies to avoid paying taxes upon intangible assets such as securities, patents, licenses, copyrights or trademarks. The article States seethe at Delaware over taxes gives a good overview of both how a Delaware Holding Company works, and which states are upset because they aren't earning taxes on income from those intangible assets being managed by holding companies located in Delaware.