This is not a crazzycool trick or hack but a news. Japanese Research team able to successfully map simple images process in human brain on the computer screen. Pretty much you can record your dreams now and watch them in the morning.
Future Products - This is totally my Imagination.
Please would be able to upload their dreams to YouTube. May be it is better to have a separate site like Dreamtube. Would be a interesting website to go through.
Police will be able to get the better idea about what criminals are dreaming and their imagination.
More than anything as your dreams convert to digital media it will not be safe anymore. Hackers will be able to hack your dreams.