This isn't a real alternative to flash. It is like the linterna magica
(http://linterna-magica.nongnu.org/ also a GreaseMonkey plugin). They only
try to find out the video and then show it on an integrated version of you
usual player replacing the html tag (with the flash content) by the
appropriate one so you can see the video.
Those aren't real alternatives since flash wasn't created only for Video and
Audio but also for gaming, animations, website content etc... And those
"plugins" can't do that kind of job.
To solve this we have 2 pieces of software :
1 - Gnash (http://www.gnu.org/software/gnash/) that is aim to support Flash
from the first content to SWFv9
2 - Lightspark (http://lightspark.github.com/) that is aim to support Flash
version 10 and up.
Both are still under development and need a lot of improvements before being
an "official" and "ideal" alternative to Flash. Even if those projects aren't
nothing more than a "short replacement" since the idea is to fully replace
Flash with HTML5.
