Please excuse us for the late reply! UI for Windows Phone 8 are built to be used for WP 8/WP8.1 Silverlight apps. UI for Windows Universal are targeting WinRT Universal apps (WP 8.1 and Windows 8.1). More information regarding the differences between these two frameworks can be found here - http://developer.telerik.com/products/need-know-windows-universal-apps/
RadMapControl is part of our UI for Windows Universal suite, currently only available only for tablet (Windows 8.1). However, we have ideas to provide support for Windows Phone 8.1 as well in future releases.
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