Samsung just announced the Galaxy Note successor the Galaxy Note II at IFA 2012. It's looks like the new Galaxy Note II will be coming to China with Dual-SIM support.
China is the only market where Samsung releases Dual-SIM devices. Samsung did the same with it's Galaxy S II Duos, Galaxy S Duos, Galaxy Ace Duos and Galaxy Y Duos. The Galaxy Note II will have one Micro-SIM slot and one Normal-SIM slot. The device will arroive on China Unicom. The device will also have exactly the same specification as the international variant, 1.6GHz Quad-Core Exynos 4412, Mali-400MP Quad-Core GPU, 2GB RAM and 8MP Rear Camera. The device will come preloaded with Android 4.1.1 JellyBean and with some China Unicom carrier Apps.
(Source: SammyHub)