Bright Side of News reports Apple rejected Intel's Arrandale in its current form. It appears Apple decided to wait for Sandy Bridge, coming later in 2010.
Apple is the company that is known for always going on their own way and now it seems that the divide between Apple and Intel is wider than ever. According to sources close to the heart of the matter, Apple allegedly refused to adopt Intel's Arrandale and the Calpella platform in its default form. In order for Apple to implement Calpella design with their next refresh of Mac mini / MacBook / MacBook Pro lines, Intel will have to provide Apple with the 32nm version without the integrated graphics part. Again, we cannot confirm the information about the replacement CPU, we only know that Apple rejected Arrandale.