Worse than that, there's no consistency in Fn+key shortcuts. Recently acquired an HP Ergonomic Keyboard as a replacement for a broken Sculpt, only to find out that it literally cannot send Ctrl+Break -- there's no key for it, no Fn+key shortcut for it and the remapping software doesn't simulate it properly.
The keyboard I was mentioning isn't a laptop keyboard, actually, but laptop keyboards tend to be in a slightly better spot as the major vendors typically have Fn shortcuts for the missing keys, like Fn+B for Break, and they also document them in the user guides.
Detached keyboards seem to be more of a wild west, especially when they target multiplatform -- and it's always the stuff they don't document that screws you.
