It has been pointed out that iDice is a likely CERTAIN scam. Please consider before you invest. Just read the announcement thread for proof, which suspiciously enough, is locked now.
They removed pictures of their own developers from the crowdsale site after it was pointed out that they stole pictures from other accounts.
Also, they seemed to have started their ICO 5 days earlier than announced in an attempt to make as much money as possible before people find out.
A project that does not allow any kind of scrutiny and answer to questions is a project that you probably dont want to become part of, since the chances it is a scam are very high, it would be nice if someone could present definite proof of it, but that behavior at least should be a red flag for anyone that wanted to invest in that ICO.