I could not find their official page for the device.
I did find their press release about it:
http://www.huawei.com/news/view.do?id=11162&cid=42
also found their device page where they list all their cell phones. I am assuming this is where the device will show up.
http://www.huaweidevice.com/worldwide/index.html
Also if you search for the S7 on their support page there is already an update.