What is the best example of this combo ? Also, the idea reminds me of this: http://c2.com/cgi/wiki/wiki?AlternateHardAndSoftLayers http://c2.com/cgi/wiki/wiki?

What is the best example of this combo ? Also, the idea reminds me of this: http://c2.com/cgi/wiki/wiki?AlternateHardAndSoftLayers http://c2.com/cgi/wiki/wiki?AlternateHardAndSoftLayers