Oneslate is now available as a virtual machine image. You can run a VM image in Virtualbox (or VMWare) to have a locally hosted Oneslate platform. Benefits include falling back on your existing network, total security control, etc. Please contact Oneslate to get started with a Oneslate platform Virtual Machine.
The Linode-hosted cloud services is of course still available for automatic signup at a *.oneslate.com sub domain of your choice from this website.