Or you do both GPL and hosting offer at the same time. This what we are doing for Indefero and this is working very well. In fact, we secured some big companies

Or you do both GPL and hosting offer at the same time. This what we are doing for Indefero and this is working very well. In fact, we secured some big companies because of the ability to easily move in/out of the hosted offer from/to a company installation. The cost of entry on the market for a SaaS application is so low now, that companies start to ask more and more such kind of insurance. For some other services, code in escrow could also be a good idea, but when not open sourced from the start, closed source code is often hard to bring back to life as an open source project. Sometimes it works well, for example with Blender. Indefero is a code hosting/project management software: http://www.indefero.net http://www.indefero.net