i dont remember saying that it didnt work, nor did anybody here if i recall
the iPod isnt crippled, Coverflow kinda is. but i upgraded from a 1st day 5th Gen, also have an iPod Touch due shortly. i can still use the iPod perfectly,, except the coverflow.
Upgrading from a 5th Gen, i want to say the Sole diffrence is coverflow, UI change wouldnt be worth it.
i currently use my iPod 6th Gen,, the same as my 5th Gen, due to coverflow issues.