Hyper Focused Media's Carl Williams writes, "Microsoft is planning on bringing their Windows Phone exclusive digital assistant, Cortana, to iOS and Android devices, according to Reuters. The largest problem with this series of events unfolding is the fact that Microsoft has this little thing called Windows Phone to worry about. Windows Phone only represents about 5.1 percent of the cell phone OS’s shipped in 2014, according to CustomsToday, which means there are millions of Windows Phone users. A large majority of those users are running devices that offer Cortana, a Windows Phone exclusive (soon to come to Windows desktop/tablets). If this does happen, Cortana will join other Microsoft apps/programs/services, such as Office and Bing Search, which have jumped ship from being Windows Phone exclusives to become cross platform in the phone/tablet market. What this means for Windows Phone though is troubling to say the least."