TurboHercules
Few days ago, a new company was created: TurboHercules.
As the name implies, they package up Hercules (an IBM mainframe emulator), and provide support for it. They are targetting the platform as a disaster recovery solution.
It shouldn’t directly affect the open source project in a negative way (just like Red Hat cannot prevent people from continuing their work on the Linux Kernel). At the same time, it’ll change the way people look at Hercules.