Arm is an excellent choice for such an implementation. The power profile is good and the number of units that can be crammed onto a wafer mean that costs of fab can eventually go below $1 per processor, with high volume. The future of computing is a place where general purpose CPUs primarily function as controllers and routers for special purpose signal processors and stream processor anyway and x86 processors are overkill for that.
In English, every word can be verbed. Would that it were so in our programming languages.