John Gruber on ARM Macs

John Gruber, on Daring Fireball:

[…] The ARM revolution for notebook PCs is coming, whether Apple is ready or not.

(I think they’re ready.)

We all know John likes to slyly pass on insider tidbits from time to time. Is this one of those? Are ARM Macs coming this year, or do we still have a way to go? Either way, I’m really curious how an A-series chip will perform in a larger form factor, without all the thermal and power constraints of an iPad or iPhone.