There is little news about it.
One of these says the more time passes the less you receive
current you receive 15000 XRP0 when join and 5000XRP0 as referal bonus .
When i saw it couple days ago and didnt follow was 25000XRP0 on reg and 10000XRP0 on refeer but wasnt at pc and didnt followed
so here link to follow
https://xrpzero.com/signup/EET9KLEELR
dont be late and dont miss it
XRPZero is currently in the Airdrop phase of its release as of June the 21st (2018). Their is no crazy tasks or scavenger hunts to complete. Just register and you get twenty-thousand XRP0.
From what I have read online this ERC-20 token is supposed to be released in January 2019. Information can be found on etherscan by searching the token name “ZeroXRipple”. It supposed to be exchanged on Cryptopia at its release at a starting value of $0.03 USD. Giving this airdrop a $450 USD value and you just have to register and you have the tokens when you log in.