Apple is losing ground on both its iPhone and tablets to Android smartphones and tablets. Interestingly these are the both products that use ARM CPUs. The biggest mistake Apple could make is to alienate its loyal MAC users by degrading its laptops and desktops with slow processors. The creative types would drop Apple in a heartbeat if Apple can't keep pace with x86 PCs for Adobe Premiere Pro, Avid and similar software. Second mistake would be to force a tablet interface on desktop users the way Microsoft is alienating desktop users with W8 UI.