ARM is moving to powerful 64bit chips. http://www.arm.com/about/newsroom/a...-the-next-version-of-the-arm-architecture.php This is on top of server-class ARM chips being developed. http://www.theregister.co.uk/2011/10/28/applied_micro_arm_x_gene_server_chip/ Apple could and should go ARM-only as soon as if viable. ARM is just slicker tech than x86 by miles. An all-ARM shop makes sense. Intel could be the next Microsoft - the unassailable top dog suddenly finding itself toppled.