If you care about this, don't just complain, make sure you fight back and let your opinion be known. I have filed out the feedback form on the Apple site several times and each time I keep hitting back and resubmitting the same thing. I'd encourage everyone to do the same to make sure the get the idea loud and clear. Also sign the petition and send it to everyone who would care. This might not bring back firewire on the MacBook but it might at least make them think twice about removing it from any other computers.
http://www.PetitionOnline.com/MB1394/petition.html
http://www.apple.com/feedback/
http://www.PetitionOnline.com/MB1394/petition.html
http://www.apple.com/feedback/