I found the Slingatron to be a particularly novel approach for launching small amounts of unmanned mass to LEO - I am curious to know what came of their concept

I found the Slingatron to be a particularly novel approach for launching small amounts of unmanned mass to LEO - I am curious to know what came of their concept. https://www.kickstarter.com/projects/391496725/the-slingatron-building-a-railroad-to-space https://www.kickstarter.com/projects/391496725/the-slingatro...