I noticed that a lot of laptops nowadays seemed to be getting shipped with broadband/dongles for free, and seem to be pants in the gaming department in AAA respect because they are all nearly Intel GMA based systems.
more than likely a contract dongle at that and perhaps with no choice in gb price plan (must look into upgrading mine from 3 to 7gb)
power/heat issues will always be there for high end gfx
remember a lap top is meant to be portable as its primary role, not just a smaller all in one box that takes up less space on your desk.
granted where i live laptop sales are on the increase as most people live, like i do, in bedsits and shared houses and space is a premium and everyone whos told me they were buying a lap top wernt buying it for portability but for its small foot print
but due to the power/heat issue, they will never be able to do things a (sometimes far) cheaper desktop could do and if one thing goes wrong, it all goes wrong
you cant get access to the hard drive to back it up before shipping it back and they send you a brand new box, well thats all your holiday snaps and mp3's gone the bye bye