Turbo Stake is over as is mining. Currently, you can stake coins at 10% interest per year. Soon we will switch to a new staking system that I think will secure the network more than the typical interest rate type of staking return. I'll explain the rationale behind the system when I release the update. Some teasers: it will be a system that rewards early adopters in addition to encouraging more participation in staking. It will not be Turbo Stake. Also, I do not claim it is technically groundbreaking--just better than the prevailing PoS systems in my opinion.