Actually, the point IS that it's hard to do. Changing flash to HDD is not trivial...not if you want to keep WiFi capabilitiies, enlarged display AND
reasonable battery life. People seem to keep forgetting the iPod classic does NOT have WiFi or the larger screen.
I would like to see exactly how difficult it is, just these kind of "guessing" really isn't convincing at all.
Palm LD has exactly big screen, HDD, Wi-Fi, SD expansion slot, and its a two years old product. I don't see why its so difficult for apple to do it today.