=== Experimental evidence for quantised spacetime === 

 Double slit in time experiment. http://physicsweb.org/articles/news/9/3/1/1?rss=2.03Cbr20/E This surely is experimental evidence that that matter/energy is not just quantised over spatial dimensions (as shown by the classical double slit experiement) but over the time dimension as well. ie: spacetime does have a quantum nature. 

 http://xenz.stumbleupon.com/