I am with you on this Mijo Lewis -- and Babowa, just saying "it's not a PC, get over it" is really not a helpful answer.
I have had plenty of Macs (granted, big desktops at my former job in publishing, not laptops) that had forward delete keys, so it's not as though Apple doesn't acknowledge the usefulness of it.
And I really can't stand when people ask why one would need a forward delete "to delete what you haven't written yet?" That would imply that no one ever re-reads what they write... Well, trust me, in publishing, we re-read everything, and more than once, so when you are reading along and you find a problem, you want to get rid of it as soon as you see it, not have to pass it and double back.
So yes, we can get used t it being a two-handed function if we actually have to, but for such an essential function to require two hands is actually a perfectly legitimate gripe in my book. (as is the fact that apple, who was the first to put the @ key on the keyboard, has tucked it away to an "alt" feature on the French Macbook keyboard. Seriously? They think the French don't do email or what?