Play RTMP without Flash

Assuming you want something as universal as HTML5 (otherwise, you wouldn't mention it?), the answer is quite disappointing. NO.
Without Flash, you need a seperate client for EVERY platform, be it Android (Java), iOS, Windows, Linux, etc etc.
You'll be programming till you drop dead, and still haven't covered all your bases. You have to prioritize which is more important.
From the clients perspective, they usually have to download something (be it your own ActiveX component, or Java implementation), which is another stumble block.
That's why it's still Flash or HTML5 on the web right now (with Flash as one of the few viable choices for protected content)

Thanks for answer!
i can live streaming hls with html5 player for the platforms which you list. But if browers do not support flash, we can't use rtmp for live stream. So which protocol can replace (rtmp+flash) with low latency ?.