Argon2d has no fast-verify code and it will take between 3-6 months to get it implemented as we need to write it from scratch.
Argon2d works for mining, but due to no fast-verify code and trying to get argon2d to an "easier" form for the wallet to be able to verify blocks quickly, it in-turn lengthened the time for Wolf to create GPU miners and then once we were at a point to have Wolf work on the GPU miners he unfortunately suffered an infection and was admitted to hospital.
We tried alternatives with other algorithms which was why I posted as Silk Network and asked which cards people use. The resounding response was AMD which also created an issue as the only memory hard algo that we had working was Lyra2v2 which is hugely in favour of Nvidia, so that was a no go for fairness. Cuckoo Cycle was also looked at but that has a bug/flaw and is vulnerable. Yescrypt was another option and varied other algorithms but all had their own problem or caused unfairness to miners.
I want this launch and the development team wants this launch to be fair and this is why the decision has been made to postpone launch until we have completed testing of the wallet and have a fully working implementation of Argon2d within DarkSilk and have no need to Spork or hard-fork later down the line.
DarkSilk binaries will be released which will connect to a testnet for users to use the wallet and learn its functionality and features, users accounts on Weaver will have DarkSilk added to their wallets for their ICO investments and a bounty for help with the fast-verify code for Argon2d will be issued.