Well, the competition (ARM and Apple, not AMD) is already "outperforming" in that they have the entire phone market and intel is still losing money trying to break into tablets (which are probably past their peak anyway), much less phones.
And I came back to edit my previous post, but will just say it here: 14nm Atom seems to me to be a complete disaster. Huge increase in igp, when what they needed was better cpu performance.
All these delays and mediocre improvements except in igp are coming at the worst possible time for intel to try to make inroads into ARM/Apple territory.
Cherry Trail was always meant to be that, basically a short-lived shrink that fixes the relatively weak graphics performance. The problem is that this was meant to be a late 2014 product and we should have Broxton (new microarchitecture) by now. Intel needs to improve their execution here.
Rumour says Intel is backing away from contra revenue for tablets.