Pocket, Portable and battery powered HDTV's

[NowhereMan 1966]

I'm not sure where to ask this question so I figure this would be the place. I know the FCC mandated that we go HDTV only sometime in 2009 although deep down inside, I do think that can be pushed back, maybe. Anyways, there are a lot of portable, pocket and otherwise battery powered TV's out there that would be rendered useless along with the rest of the analogue televisions. Of course you can still use them via converter boxes but that would kind of defeat their portability, better hope you can benchpress a Buick, you'd need to be Arnold Schwartzenegger to carry around the box, an inverter, and a battery and the TV of course just to catch your soaps and sitcoms out in the bush.

So what I'd like to ask is, will there be portable and battery powered HDTV's, I'm sure there would be but why don't we see them now?

Inquiring minds want to know.