Re: Hmmm...
Keep in mind that I do not have a complete knowledge of this system, so there may very well be a power disconnect, or the system may be designed so that the on-off switch actually is an on-off relay of some kind that separates the power from the rest of the system.
I do know that things like the hard drive and memory seem to be designed to be very easy to replace, and I've read that these are considered "user replacable," so it seems unlikely that these are live circuits when the machine is off.
Don't draw firm conclusions based on my observations - I'm no laptop-innards expert.