Twonky is a "beam" app, you use an android/ios phone or tablet and basically get to "beam" internet videos to it. IE - Go on youtube, press play, it'll play on your Roku instead of your tablet/phone. It's one of the workarounds to get YouTube on your Roku.
Thanks for the tip. I knew the VideoBuzz YouTube workaround had been yanked. Good to learn there is now Twonky. Thanks!