I think he's right. If we want developer attention, we need market share. And one of the major features of the iphone 4 is their facetime. I know we already have skype etc, but think about it this way, maemo and meego would only gain from this.

Think of a situation of a potential buyer. This person who is undecisive between n900 (or the next meego phone) and the iphone 4. Having facetime would be one less advantage (in their eyes) because it would be already compatibe with other iphone 4's. Thus they wouldn't have to be worried about "uggghhh, eff it, i'll just get a iphone 4 so i can do facetime with my friends"

I know it seems like this might be a win for apple because we are "supporting" iphone 4's proprietary system, but, there's much more leverage for someone to purchase a meego phone because it supports facetimes with other iphone users compared to vice versa, hope that makes sense