Okay Chief... Lessee... Now, this here idea of making the "Home" button on the N800 work in reverse compared to the 770... this sounds like a GREAT idea. Short press, app list and switching ; long press, home screen. Yes, that is just NATURAL.
I use the Home button on my 770 all the time, to switch between full-screen apps. Too impatient for the long press, I short-press and tap the icon (often the wrong one). That's why I like the N800 way : I could do it just as fast, using only the keys, and use the titles to get it right.

Positive, yes ? :-)

Now for the suggestion : I want this on my 770. No hardware compatibility or software licensing issues on this one, right ?...