Lenovo is announcing the 4-inch ICS model, the A660, with two interesting components– dual-SIM slots and a waterproof case. The IP67 certification and Gorilla Glass also make it dustproof.  Additionally, it features Android 4.0, 1GHz dual-core processor, 800 x 480 screen, a 5-megapixel rear camera and will be available in China soon.  The A660 boasts several colors, and supports WCDMA + GSM networks with dual-SIM / dual-standby capability. There’s no word on pricing or an official release date, but we’ll keep you posted.