AMD is not playing in the mobile space with ARM. They realise they are not large enough like Intel to spend their way into the ARM market. ARM is interesting because you have Apple and Qualcomm at the high end, but you also have Mediatek and RockChip at the low end. AMD cant play the "more value for money" in ARM mobile that they do with x86 - because there are already people doing it.
No, but following the disruption innovation theory, ARM should soon work its way up, while it will cannibalize Intel and force it to move increasingly upmarket (servers, etc) to chase profits. Intel is already losing billions subsidizing Atom chips [1], their "real" competitors to ARM chips, to make them at least semi-attractive to OEMs (which will really get the short end of the stick, if they go with Intel anyway, because if they do help Intel succeed, Intel is going to immediately increase prices on them, to turn the division profitable again).
ARM chips don't have to "beat" Intel. They just have to become good enough for desktop performance, while costing much less.
