Intel Press Release - Apple to Use Intel Microprocessors Beginning in 2006:
"WWDC 2005, SAN FRANCISCO—June 6, 2005—At its Worldwide Developer Conference today, Apple® announced plans to deliver models of its Macintosh® computers using Intel® microprocessors by this time next year, and to transition all of its Macs to using Intel microprocessors by the end of 2007. Apple previewed a version of its critically acclaimed operating system, Mac OS® X Tiger, running on an Intel-based Mac® to the over 3,800 developers attending CEO Steve Jobs' keynote address. Apple also announced the availability of a Developer Transition Kit, consisting of an Intel-based Mac development system along with preview versions of Apple's software, which will allow developers to prepare versions of their applications which will run on both PowerPC and Intel-based Macs."
Via Engadget <- LIVEdigitally
Related: Yahoo! News - Apple Risks It with Intel
