This is Genesis, Royal Carribean International's next entry into the gargantuan cruise ship sector. At 220,000 ton, she will be the largest by almost 50,000 ton.
Freedom of the Seas (currently the largest): 158,000 ton.
Queen Mary II: 150,000 ton
Queen Mary: 83,000 ton.
Titanic: 46,000 ton.
The old Titanic doesn't seem so Titanic anymore.
Genesis is on the ways now and is scheduled for delivery in 2009.