well, in my previous examples, i was using a free linux hoster. i found another one that was much more reliable from a responsiveness standpoint, but found a snag and wanted to share.
you see on some free hosters, in order to be free they'll add banner adds to your pages. for my purposes, who cares. i signed up with this particular one and none of my samples were working. huh, weird i thought. until you look at the error message of 'unknown namespace' from silverlight. ahh...
you see what the free host was doing was injecting their banner ad code into *every* served request. so when the xaml page was requested, it was being injected into the root of the xaml, thus putting in stuff like <div>my banner ad</div> before the root <Canvas> node. the silverlight parser looked at that and said 'sorry man, homey don't play that.'
argh, off to find another...anyone know of a good free linux host (ad supported is okay as long as it doesn't do the above)?