It looks like having two manufacturers has not been near enough, and so finally Microsoft have signed up a third company, Celestia, to join the manufacturing process so that Microsoft can meet the high demand of the console.
I think it is a bit late since I can now for the most part walk into Wal-Mart and pick up an Xbox 360 in Canada, and in Japan there is no shortage. So that only leaves Europe and the US.
Mr. Moore also said that purchasers of the Xbox 360, that are disappointed by the number of titles currently available should hold on a big longer as 50 titles would be available by June.
Source: BBC News