On Dec 6, Nokia unveiled plans to cooperate with China's dominant cellular operator, China Mobile, to offer the Lumia 920T, Nokia's new Windows-based smartphone, to the more than 700 million Chinese who are China Mobile subscribers. The Lumia tie-up with China Mobile offers Nokia a chance to reestablish its brand in China, writes John Butler, Bloomberg Industries analyst. The Lumia partnership isn't the only new strategy for China Mobile. The company also has plans to introduce its own-brand cell phones and launch a mobile Internet subsidiary, the official China Daily newspaper reported on Dec 6. As smartphone sales increase, more Chinese are signing up for 3G services.