Wouldn't say that. There are laptops out with the Q9550 in there, and they run fast and produce quite a bit of heat but no complaints as far as I've seen.
Yes, the battery life is shorter but if you want a gaming laptop; well what more could you ask for?
OK, we had our fun. Now, on the up side, it is something unique, with tremendous power, and a lot more compact then any desktop, not so many wires, not so much clutter.
So it has it's place in the world. I wouldn't mind having one. I would consider buying one if I wouldn't have a 17" DTR laptop already that's still holding on. Mine doesn't have that much power but it serves it's purpose.
So it's an interesting machine, one of a kind. It has it's flaws but the good parts make it very juicy & tasty.
If we had pics and benches maybe we wouldn't have such a hard time accepting it.
Second link in the article is dead - 404 not found
Dimensions of the laptop probably aren't that good for a lappie, it still has to house a desktop cpu as intel hasn't developed a mobile i7 yet. This means the full 130 (!) watt of heat from the i7 920 has to be removed, which results in a lot of noise, weight and size. Or downclocking / overheating, both resulting in moderate performance.
If you have the money for such a laptop ($5000+) you could just as well buy yourself a nice mATX based i7 rig and a P9x00 based laptop. The mATX i7 will not take much space and could be hidden within furniture while the P9x00 is much more convenient as a laptop.
EDIT: also, when you have such raw processing power you might also want a good working location. So if you want to make real use of it as a professional you would at least need a full desk and 1 external screen or more resulting in setup time and clutter.
Yes, you would need a pretty big laptop style heatsink to keep that (not mobile) CPU at a respectable temp. So I would imagine that overclocking is not an option, the laptop must be pretty big with the hard drives, tv tuner etc etc and the mobile graphics card and its cooling..