This one is confusing as all heck.
Intel rules the mobile, and AMD rules 64. But IBM has just ditched its computer line, has the console department under wraps, the Power5 is everyone's hardcore wet dream and the Cell has potential out the wazoo.
Short term Intel sounds nice, but with all the hassle needed to switch it sorta looks like IBM might be a better match again by the time the OS is sorted out.
Plus, isn't the PPC architecture part of the reason the OS is so secure? I'm no chip expert, I just swear I read that somewhere.
O' course, if Apple is gonna license OS X then this makes perfect sense. Hello market share, goodbye...well, we'll see.