There are a couple of very large business focused projects that work on code escrow and termination clauses. The general idea is that when you contract for a c

There are a couple of very large business focused projects that work on code escrow and termination clauses. The general idea is that when you contract for a customized application you get a price break by not taking the source code (as the vendor will expect to get money from change requests, support and selling to other customers). However takeover or bankruptcy of the vendor will let you claim the code under a GPL-type license from third party escrow. Some of the peace of mind of OSS, but a decent revenue model for the vendor. I would prefer 'genuine' open source but as a buyer I would rank this kind of arrangement far above the normal 'we die and your tools stop working'.