Depends, performance wise it should be able to compete with or even outperform x86 in many areas. A big problem until now was cross compatibility regarding peri

Depends, performance wise it should be able to compete with or even outperform x86 in many areas. A big problem until now was cross compatibility regarding peripherals, which complicates running a common OS on ARM chips from different vendors. There is currently a standardization effort (Arm SystemReady SR) that might help with that issue though.