Apple and Best Buy are planning to bring iPhones to some of Best Buy's nationwide outlets in the next 4-6 weeks, according to sources. Meanwhile, the retail chain plans to expand the number of its stores that sell Macs to 300 by the end of 2007. When the expansion is complete, Best Buy will be selling nearly 80 percent of Apple's entire product offerings in about 40 percent of its own outlets across the U.S. AppleInsider reports that the two companies, which launched a pilot program to test the prospect of selling Apple goods in just seven Best Buy stores last year, will start by expanding Mac distribution to 200 locations by the end of September.