Don’t worry – it’s still free
HyperVM and Kloxo are free and open source. On a standard HyperVM install you can run up to five VMs – Kloxo licensing has heen set to unlimited. If you need more than five VPSs, you’ll need to sign up for a license. This is free and permits unlimited servers and VMs.
You do not have to pay for the License. The HyperVM License server will be obsoleted in time, but is necessary at the moment.