A new report Tuesday morning suggests Apple has notified Foxconn, its next-generation iPad manufacturer, that initial shipments will commence in the next 100 days. The unconfirmed report originates from China’s industry watchdog, DigiTimes, and suggests that initial shipments will be in the 400,000 to 600,000 range. Those numbers seem quite low for the sequel to a device that is selling as well the iPad — Apple sold 300,000 iPads on its first day of availability and it reached the 1 million mark in 28 days. The company is currently selling over 1 million units each month. If DigiTimes’ report is accurate, we could see a large second shipment shortly after the first one, with Foxconn’s new plants in Chengdu possibly ramping up volume following the initial production runs in Shenzhen. Apple’s iPad 2 is expected to feature a thinner case, a Retina Display, a gyroscope and FaceTime support.