When using non-free software, one is always constrained by the licence. Do we have a copy? Do we have a licence to do this? What will be the ultimate cost of N licences? Do we have a budget? Do we need customization which will take longer?… All that gets in the way of development just as it does with actually using the code. Not so with Free Software that comes as a free download and permission to use, examine, modify and distribute for no extra charge.
“To demonstrate the pace of change in agile teams, we gave ourselves one day to rapidly prototype the service, working here and at offices in Plymouth and Leicester. 8 features were built and deployed on the day, iterated in response to testing with real users.”
FLOSS licences permit developers to do whatever is necessary to get the job done whichever way they feel best. They don’t need to constantly refer to the licence, call in bean-counters and lawyers and ask permission of some remote party.
That same agility applies to system administrators, users and their organizations. FLOSS works for everyone. I recommend Debian GNU/Linux and its huge repositories for developers, system administrators, users and organizations who want IT that delivers the best performance from hardware and the lowest cost and with the most flexibility.