Qualcomm didn't show all its cards for this year when it unveiled the Snapdragon 600 and 800 at CES. The company is introducing a second-generation power charging technology, Quick Charge 2.0, that promises to cut mobile device charging times by as much as 75 percent versus regular power systems. Qualcomm has seen a tablet's 7-hour top-up time reduced to under 3 hours. While 2.0 requires an optimized charger and is baked into the Snapdragon 800, it's not exclusive to Qualcomm-based hardware -- or small devices, for that matter. The updated Quick Charge is available as a stand-alone circuit, and could drive even laptops d