Netbooks will need better screens.
.. if they want even a hope in hell of being able to play 720p content (the "not quite" HD standard that television channels, cheap TVs, and "certain websites" offer).
Currently the vista netbooks (HP 2133, Vaio P) are the only ones that cut the mustard... Microsoft is gimping the screen res on all the other ones, as it won't let XP be put on anything with an above-useless screen resolution.
And as for blu-ray.. well, that's a 1920x1080 screen needed.
That's the resolution of the 24" monitor I'm typing this comment on, so I can't see how on earth they're planning to fit it into 9" at a non-insane cost.
Then again, they'e currently making laptops with blu-ray drives and screens that aren't hi-res enough to actually display the higher quality, so who knows how silly the hardware releases will get.
Expect a throughly mediocre netbook market until MS releases windows 7 for netbooks, in 2010 or whenever the hell they feel like it.