Even with screen sizes as big as 6.3 inches, those who are visually impaired might have difficulties using a handset. And that is the niche of the wirelessmarket that Odin Mobile is stepping into. The T-Mobile MVNO will offer to customers a handset that is designed for those with poor or failing eyesight. That model is the Huawei RAY, an Android model designed specifically for the visually impaired...