I think this project could become really huge and powerful alternative platform for creating dapps and smart contracts. Looking forward to updates and more technical details. Need to learn more about is that system with State Channels can be really trustless, or counterparties still need to trust themselves like ie in Lightning Network for Bitcoin.
There are multiple proposed designs for lightning network on bitcoin, I don't know them all. I do know that some designs on bitcoin are trustless.
The Aeternity design is trustless. Jehan explained how they are trustless in this paper:
http://altheamesh.com/blog/universal-payment-channels/how to solve the trustless payment system i think aeternity team should think about it