I like dogecoin because the fee is not too high, and dogecoin is one of the coins that many people use to gamble.
And if satoshisquares can add dogecoin to their site, I think that will attract many gamblers to come to their website.
But until that time, we should satisfy to use existing coin on their site.

I think the chat is not available on the mobile phone because I don't see the chat room as you.
But after I try to visit on the website, I see the chat room available, and it's in your right position at your monitor.
Maybe the @OP will add the chat room feature to the mobile phone to chat using their phone directly.
Or maybe the chat room is available only if you register on their website because I don't register with them now.

Here's the update and it's great to see that Doge already there, like what you have said it's nice and it's been used by most gambling site, gambler enjoys the low transaction fees.  Very well done team!