I am sure everyone has seen it already... but BigTimeCoin has received his 4/17 bulk chip purchase.
https://bitcointalk.org/index.php?topic=282452.msg3021324#msg3021324

There was also a rumor that Zefir received 4 batches over the weekend.
http://www.coindesk.com/bitmine-to-drop-4phs-of-asic-power-onto-bitcoin-network-before-april/

Maybe like rip van winkle... Yifu has awoke from his slumber to see that world has changed (and maybe unlike Rip, Yify has started to do something about it).