The TOMTOM PRO 8275 device uses the Android 4.3 (Jelly Bean) Operating System. All On Mobile v3.1.x is the last release of All On Mobile that will support the Android 4.3 Operating System.
Al lOn Mobile will certify its Mobile Device App for the TOMTOM platform when TOMTOM release an updated Operating System for the PRO 8275 or a new TOMTOM Mobile Device supporting a higher version of Android.
If you have any questions on TOMTOM support and All On Mobile please contact support@allonmobile.com.