Target and Amazon are now carrying the iPad, and Walmart looks to be next, reports “Fortune” ( Rumors say the giant retail chain will begin carrying the Apple tablets this week and could have them in 1,000 stores before the end of October.

In May, “Bloomberg Businessweek” reported that Walmart was expecting to offer the iPad for sale at “some U.S. stores” before the end of 2010, a move that could re-double the iPads’ retail presence. The question is whether Apple can build the things fast enough to meet demand, notes “Fortune.”