I can tell you first hand the majority of our team members work on our opensource projects. It's one of the main reasons I came to work for CoreOS over a year ago. But the concern is still valid -- will CoreOS really keep funding our opensource projects or will CoreOS pull a fast one and go open core?
So far our actions prove we are committed to opensource and that continues with todays announcement. We wanted it to be really clear that CoreOS is all about opensource projects and collaboration, even if that means our competitors can compete with us, that we took major effort in keeping the two brands separate. There is coreos.com for "Open Source Projects for Linux Containers", and tectonic.com that combines those projects in a commercial offering. There are some non-open bits in the commercial offering, but they don't conflict with the opensource projects.
You are right that we will allocate more resources towards making money, which is required if we want to continue the good work we are doing on the opensource front. You are also right in that the community will pick up the slack, but please keep in mind that CoreOS is part of that community and we plan to continue leading the way.