I would have to agree with OgNasty on the release date due to this msg:
"2016-05-11 00:52:07
Hi ,
thank you for your message.
New miner will be S9, it will be launched in 10 days, please check our main webpage for updates.
Best Regards,
Sharif
Sales and Business Development,
Mobile: +86 13264017056
"One small machine is changing the World" "
S7 was "launched" in August and I got my Batch 1 in October (some lucky buyers got theirs in September).
I doubt the S9 will be available for immediate delivery.