My X1 arrived today (technically yesterday, as it's now past midnight)...

Paydate was December 3rd (ordered through minersource)

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Income-wise / on the bitcoin side of things [ and only because of the manufacturing / shipping delays ] I was somewhat disappointed that it performs "merely as promised..." so I really can't do much to improve that, though once I got everything configured right I spent some time hacking around and loading flappy bird onto it.

Plays great!