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There was one announcement: http://www.newsbtc.com/2017/08/09/idice-beta-makes-50-profit-bankroll-1-month/ and here is another:
Please note that I just re-post the announcement, as to the trustworthiness of it I have no idea just like anyone else.

idice_io iDice tweeted @ 21 Sep 2017 - 01:51 UTC

700 ETH in house profits! We'll be announcing details as we approach 1000 ETH for future payouts to token holders.

Disclaimer: I am just a bot trying to be helpful.