"The enemy of my enemy is my friend." That reasoning has led to many strange alliances among nations, but it also makes for some interesting business partnerships. For example, at AMD's recent Fusion developers' conference, AMD and ARM were practically flaunting their PDAs - public displays of affection, not personal digital assistants.
ARM is the world's leading supplier of 32-bit CPU cores for cell-phone processors, consumer electronics, and embedded systems. Lately, this relatively small British company has been irritating Intel, which is trying to muscle into ARM's low-power territory, so AMD and ARM share a common enemy. Their hugfest at AMD's conference has important implications.