Well not like everybody has read this before, but here are my thoughts:
I agree this is a lot of new features for a point release program and would expect to pay an upgrade, but I don't feel that it should be a seperate program. Plus I really don't like the name

, I know, I know, but Beyond TV is kinda cool, beyond media, oh well.
My recommendation, release this with Beyond TV as 3.5 or probably 4.0, registered 3.0 users, pay say $30 to upgrade to the full feature set of Beyond Media. But I agree with most, a seperate product may kill you guys in a market that more and more are starting to get into and one is free. I personally don't use MyHTPC at all, but have tried it.
I would imagine a price for current users will be in the works, but I also hope that you do get a beta out for current beta testers of Beyond TV (as I am

. Anyway, I love your product and look forward to seeing this new one, but again, recommend selling it as seperate product.
Couple possible names, Beyond HTPC, Beyond Theatre, Beyond Microsoft Media Center Edition
Corey