When does Sony reach the point of no return in Japan?

[OriGin]

I am looking forward to seeing whether the wii hardware sales numbers increase in Japan for April... if the so called ramp up in production happens, can the Wii sell at the same rate as the DS?? Will it start to hit over 100,000 a week? The next few weeks will be very telling for Sony, especially once Super Paper Mario comes out. Again and again everything I look at makes me understand just how different the Japanese market is to America now. If only we got weekly US sales figures... that would be nice heh