what about portability, do they make Satellite receivers that you can carry around and listen or can the internet be made portable outside of going on line with some Blackberry phone to listen. At least you can receive HD on the go
I might be misreading you, but satellite radio has had portable receivers for over 6 years. HD has, what, the Best Buy unit, for the past 6 months? Portable internet is still cell or satellite based, and rather expensive, but that will likely change in the coming years (look at broadband internet's advance - it's now ubiquitous). Why? Because people want it. HD radio? Nah.
HD radio isn't a question mark at this point. It's a footnote in history.