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I think that was the hint. The point is to limit the amount of people so the stream runs smooth. There are too many Windows users to allow Explorer to be one of the browsers or any other version of Windows.
Watching it right now on Omniweb, with the browser identifying itself as Firefox for Windows 3.0.1;
Screen Shot 2015-09-09 at 18.11.28.jpg
 
I haven't had Apple products in awhile but finally do and am still unable to watch the stream. I'm on my Macbook Pro and Safari is up to day. I'm also on this page:

http://www.apple.com/apple-events/september-2015/

and it still isn't playing. It just says "Live video will begin at 10 a.m. PDT." with a piece of art showing. Can someone help me watch it please?
 
Wow, the ability to listen to the heart rate is pretty nuts. I'm not in that field, but it seems really impressive nonetheless.
 
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