Looks like Alfred’s hard work has paid off. You can pull down a package of Songbird for OpenSolaris (see Alfred’s blog entry for the links). Songbird is a next-gen media player built atop the Mozilla platform. Although I’ve had it crash once, on the whole it has worked quite well. SteveL’s mashtape extension is really neat, and you can see it in action in the screenshot below (it’s the thing offering pictures, youtube videos, etc. at the bottom of the window).
Next steps would be to get this into the OpenSolaris package repository– I hope that someday soon you will be able to pkg install songbird.
Nice work guys!