If there is any service with a chance of becoming HD only that would probably be Voom. Let's face it they would never get HDNet until their subscriber base hits a mil, InHD 1 and 2 is a stronger possiblity because they are run by Cablevision. Currently they use it as a niche for people to go cable, and hopefully people would have Voom AND cable and they'd make more money right? I'm sure their stance on that will change though.
As far as commercial free, I personally don't care and don't agree they say commercial free but I see ads for movie trailers from time to time between movies, hey guess what that's commercial free. I think if it helps keep costs down for the end user Voom SHOULD offer slots for HD commercials (imagine the statement! Hey you can advertise on Voom but your commercial has to be in hD!) between movies or shows on their exclusives.
I also hope that they annihalte duplicate SD channels ASAP and use that bandwidth, I've also said that the Cinema10 channels should continue to be more genre specific. I would love to see a Mystery, Comedy, Action, and Drama specific channel to compliment Divine, Epics, WorldCinema, Gunslingers, and Monsters. Keep the movie rotation as dynamic as possible.
All in all I am very happy with my choice with Voom, and only blab my mouth off so much on these forums because I want to see it get better.