After 4 days of availability, China Unicom (CU) has sold 100,000 iPhone 4s in China (here are some photos from launch day). Pre-orders began on September 16th, and CU reported earlier this week that 200,000 orders were taken. Today, all online reservations have come to a halt. Customers must be physically at a retail store to buy one. For now, the iPhone 4 is outselling the iPhone 3GS many times over.
Phones bought through China Unicom require a two year service contract; however, the phone is also available contract-free at Apple stores.
Liu