Yesterday we reported Apple might make an announcement on Monday about a move from IBM PowerPC to Intel x86 processors. One of reasons why they would be interested in switching would be because IBM didn't manage to turn out a broad line of PowerPC processors for Apple.
The Inquirer today heard from independent sources that Apple is preparing a switch. They were told Apple also talked to AMD so it might be some of their systems will feature a processor from AMD.
Intel processors will almost certainly be featured in Apple's laptops. Probably first the Pentium M Yonah and later Merom.
A move from IBM PowerPC processors to AMD/Intel x86 processors will have lots of consequences for Apple. All software will need to be rewritten or emulated because it won't be compatible with the x86 processor architecture. It could also hurt Apple's sales since many people won't be interested anymore in buying a platform that will be phased out soon.