Just to add fuel to the fire...
iBooks and PowerBooks (and MBPs, no doubt) have/had the Fn key in that position as well. As an aside, Apple puts their "Ctrl" equivalent (the Command key, used for keyboard shortcuts) next to the space bar, which I personally find a superior layout because you hit it with your thumb.
This all goes back to my previous arguments about the Thinkpad being targeted at "business". Not to generalise, but I have personally met few "business" people who actually
use the CTRL or ALT-based keyboard shortcuts available to them. They would rather click an icon or go burrowing through menus instead. This probably explains why I see so many of them running MSWord with toolbars stacked 6 deep and the taskbar 2 rows high and only 40% of the 1024x768 screen actually showing the document/web page, whatever. On the other hand, they are
possibly more productive than people like me who fight tooth and nail for minutes/hours with MS to get back every millimetre of screen space and performance.
If this is their target market, then they are obviously going to run the risk of alienating people who have learned to use the CTRL in the corner...
What would be great is if you could remap any of the keys on the keyboard; I would think heavy emacs users would then opt for mapping the CapsLock key to CTRL like on the old UNIX terminal keyboards.