If you have one of those uber laptops with a battery life measured in minutes you can count to on fingers, you are probably only missing one thing, video.
The PlayTV seems to solve thing problem nicely, allowing for video watching and PVRing to your heart's content. The only problem I can see it the tendency for laptop builders to put in slow HDs, something that PVRs don't like much.
Even with that in mind, as long as you don't go overboard, this card will probably be a very good thing for TV addicts on the go. You can find the full specs here. ยต