Amazon Flex - shaking up the workforce

Amazon recently announced Amazon Flex and if you have not checked it out - you should!  Think of it as an Uber-like experience for those people that want to work when and where they want as a delivery person for Amazon.  I saw a demo of the Amazon Flex at CSCMP's Annual Conference last week - it was mind-blowing.  With unemployment at 5.1% (some say this is 'full employment') it's getting harder and harder to recruit, hire and retain good skilled workers.  Well, Amazon is attacking this problem very effectively by offering an extremely flexible work option, with good pay (they say $18-25/hour) and backed by exceptional mobile technology.

It will be interesting to see how this develops, but is there any reason in the world that DC, retailers and others should not be attacking the labor shortage in a similar manner?  Amazon has set the bar very, very high.  How are you addressing the difficulty of hiring good, skilled workers for your organization?