Steve Jobs in Exile by Geoffrey Cain had a very good section on this. Ross Perot (one time third party presidential candidate) was a big investor in NeXT. Since he had founded 2 IT services companies that had extensive government contracts he was responsible for introducing many government agencies to NeXT and encouraging them to buy NeXT hardware on his personal endorsement. In Geoffrey's telling Steve ultimately blew up these relationships as a result of his immaturity and idealism to NeXT's detriment but he learned these lessons when we returned to Apple and became a more reliable business partner in his 2nd stint running apple.