It has the benefits of the open source (you can inspect, and modify the code, exists forever, etc), without the downsides (design by commitee - sorry, community -, endless bikeshedding, code churn for the sake of it).
This will probably have developer community around it. Given that any one that builds on the platform will be invested in maintaining it and the users will be somewhat technical and the businesses that adopt it will probably put some staff time towards it.
