Problem about playing h264 in flv file

I read an article at "
http://www.kaourantin.net/2007/08/what-just-happened-to-video-on-web_20.html"
which is a blog of an software engineer of Adobe, the author said
in this article that "...There are functional limits with the FLV
structure when streaming H.264 which we could not overcome without
a redesign of the file format..." and "...Specifically dealing with
sequence headers and enders is tricky with FLV streams...", does
anybody know what exactly the author mean? what is the "functional
limits"? how to "specifically dealing with sequence headers and
enders"? is it a way to solve the "functional limits"?
Thanks!

I believe that it just mean that H.264 encoded video for FMS
& Flash are not stored in FLV format... because of some
inherent limitations in FLV file format.
It uses mp4/MOV format which is what has been used by
Quicktime also for quite some time. Adobe calls it M4V.

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