The largest of its outlets is opening in London for the summer games, a 32,000+square feet of fast food, in a building constructed from recycled materials.McD's! Under attack as always for its role in making the planet's inhabitants fat, and fatter, the company is planning to pass out "activity toys" in kiddie meals throughout the chain, to encourage, err, movement? Of course the athletes on hand in London who will partake of what McD sells are the people least likely to be concerned about their caloric intake....