Is there still a developement of this Coin? I didn´t heard anything about Blackcoin since a long time. Is the Dev still active? Are he working on something new?
Updates are usually posted on the blackcoin twitter, so you can scroll through that if you want a general idea of development activity:
https://twitter.com/CoinBlackMight also be worth joining the gitter, it's getting quite active (the Slack hit max user capacity so we had to move):
https://gitter.im/BlackCoin_Hub