A vast majority of Kindle sales, however, still come from the Amazon Web site.
Eager shoppers at the retail giant get an eight-hour jump on shoppers at Apple stores.
It had looked like some stores were offering a healthy discount on Apple's flagship phone, but Wal-Mart now says there was "a pricing error in limited stores."
Once the largest music seller in the U.S., the retail giant plans to close its download store at the end of the month.
Retail giant expands its solar program with panels from First Solar and MiaSole, giving a boost to thin-film technology at businesses. SolarCity will install, finance, and own the panels.
Retailer, which will offer the Verizon iPhone in 600 of its stores, joins Best Buy as another place to buy the highly anticipated device.
The big box retailer joins Target and others in selling Apple's iPad, with plans to have the tablet in over 2,300 stores by the start of the holiday shopping season.
Customers looking for lower monthly rates from a prepaid cell phone will soon be able to find some on the AT&T network in Wal-Mart stores.
Latest iPhone won't be confined to Apple and AT&T stores on launch day. Wal-Mart joins Radio Shack and, reportedly, Best Buy, as alternative places to pick up the smartphone.
Sprint has introduced a new cheap prepaid wireless plan called Common Cents that will be sold through Wal-Mart retail stores.