Microsoft has officially launched its first Lumia phone since acquiring the lineup. In a presentation on Monday in Bangalore, Microsoft's Nokia India division announced the availability of the Lumia 630, the first dual-SIM Windows Phone. Launching in India initially, the dual-SIM version will sell for 11,500 rupees ($192). The actual availability date is a question mark. The Times of India pegs the date as May 16, while International Business Times and other sources say it will reach stores starting May 14. CNET contacted Microsoft to pin down a specific date. Whenever it actually reaches consumers, the Lumia 630 will benefit from the new features in Windows Phone 8.1, including the Cortana voice assistant and a long-awaited notification center. Designed as a budget phone, the 630 houses a 4.5-inch screen with a resolution of 854x480 pixels, a 1.2GHz quad-core Qualcomm Snapdragon processor, and 3G connectivity. The phone includes 8 GB of internal storage expandable...