Soon after listing the Andi Uddaan Quadcore and Andi5 Stallion+, iBall has now listed the Cobalt Oomph 4.7D smartphone on its site. As of now, there is no word on availability and price details of the handset. The dual-SIM based iBall Cobalt Oomph 4.7D smartphone runs Android 4.4 KitKat out-of-the-box. The domestic handset brand promises that the smartphone is upgradable …