Earlier quoted context omitted.
1). Depends on ACPI support 2). Depends on the hardware, but surprisingly yes. Even the free Nouveau drivers do pretty decent 3d support. 3). Yep, configure it to suspend on closing the lid. 4). Depends on the wm you want. 5). Usually yes. 6). Pretty good, in fact you can enable the two finger scroll pretty easily. 7). More configurable. If you are considering a switch, I'd recommend installing Fedora or Ubuntu, they…
Actually - no offense - I'm looking for specific info on the drivers on this system than a generic response. I've heard far too often 'depends on driver/acpi support' to go down that road again :) Which specific system are you basing your answers on? Can you be more specific on (6) - how many points does the multitouch support?
Generally, Intel is very good with its driver support, so try to pick a laptop with Intel WiFi & GPU. Depending on your needs you may want an nVidia or ATI GPU though.
Can't say anything on multitouch with the Touchpad, since I don't use it.