Alright, so we know we have the desktop and the server editions, and for what they're worth, they do a wonderful job on laptops.
However, what they do isn't necessarily enough, as many laptop users have to go out of their way to install modules to keep their laptops down, or keep their hard disks from being over conservative on power.
This is why I'm proposing a Laptop Edition for Ubuntu Linux, and to put in a conservative ballpark, I'd shoot for 8.10 at the earliest, or even 9.04.
The theory is simple: Get a version of Linux that is designed to work flawlessly with laptops, without letting it think for a fraction of a second that it is a desktop.
Key focuses for a laptop version would be:
1) Battery life
2) CPU throttling
3) Heat reduction
4) Less strain on the hard disks, where necessary
The reason that I said 8.10-9.04 as a ballpark would be that it might be favorable to get another type of BIOS on that motherboard, instead of what's already specified. This way, things can click a bit smoother, such as wireless identification and various other tweaks.
Do feel free to add your own theories and comments to this, since it is something I'd like to see happen someday.