If Wal-Mart decrees this, put up or shut up. Welcome to business.<p>CEO Diktats about using not using competitor services for anything whatsoever, are as old as Microsoft. Wal-mart is not in the cloud business, so I can only wonder if, as others have commented, it is about data security in AWS domain, since Wal-Mart's main competitor is Amazon.<p>We know what Google and Facebook get up to with peoples data, why would Amazon not analyze or try similar to their customers? To have all that technical capability and not be curious about stuff would be a waste.<p>Finally, I think it would be great for everyone (except Amazon), if wal-mart got in to the cloud. Using their leverage to create cheaper cloud would benefit us all.