ASUS PadFone Mini
The Padfone Mini series is composed by two devices: Padfone Mini and Padfone Mini 4.3. They are two different devices, with different characteristics.
Padfone Mini http://www.asus.com/Tablets_Mobile/PadFone_mini_PF400CG/specifications/
Padfone Mini 4.3 http://www.asus.com/Tablets_Mobile/PadFone_mini_43_A11/specifications/
To avoid the inevitable confusion, we highly suggest to 'rename' the Padfone Mini 4.3 to Padfone A11. It is also called Padfone T00C.
Unfortunately, the Padfone A11 is still unrootable. Some users have tried many root tools but the device still resist. However, it's almost sure that a rooting technique will appear.
UPDATE: IT IS ROOTABLE, thanks to 4pda.ru and Google Translate! In this thread you can find all the necessary info http://4pda.ru/forum/index.php?showtopic=501164&st=20