Well, if everyone feels like talking about usernames, then i'll just act like those people never posted...
As for a VOB player, that would take some time. I can see it happening, but i know not much about this format. If it involves anything to do with code from DeCSS then its possible that it risks itself being legal.
Now, most people say mplayer and VCL both can't be ported with their codecs for some reason. I really REALLY don't understand what undocumented thing their talking about. I wish i knew, but i really don't care right now. Maybe some day we will know why.