I pretty much doubt they would cancell the service after they have put so much money into it. They are best to keep extending the hours as time goes on until they can show new HD content and then it should go fully live.
I would expect this sometime in 2008 possibly?
If they did cancell the service i would hicjack the BBC studios and demand them transmit their HD content!
You know, only now is the TV license worth paying due to this channel!!
I understood that it had already been decided the BBC HD channel would be
permanent from this Autumn.