I would personally wait before you go jumping off of cliffs about this stuff. This is either a ploy by Charlie to get VOOM in line or he plans on adding something in to replace those 15 channels. They seem to be sticking to that 100 National HD tagline since they have channels up in the 9000s telling us it is coming. I understand if some people are upset by losing VOOM. But in all honesty the people that really care are such a minority that I can certainly see why they would drop them. Most of my neighbors don't even have HD, they just have SD and have no idea VOOM ever existed. But, if suddenly Cartoon Network and Nick HD were available they might get excited because their kids know what HD is and know what those channels are, even if there isn't any HD on them right now. And as a side note, Cartoon Network might not have any HD but the PQ on my HD set is night and day over what it was before.
Like I said, ploy to get VOOM in line or ploy to get all those kids and younger people who know what HD is into the picture. Either way we benefit in the long run.