This is one of the hidden features of Amazon Kindle Keyboard hidden features. Other than reading eBooks, you can play some game to kill your time. Steps: Press alt , shift and M buttons on your keyboard simultaneously. Once in the Minesweeper game, you can start GoMoKu by pressing G on your keyboard. References: http://www.geoplanit.co.uk/2010/09/kindle-3-some-hidden-features.html Update: 12 December 2011: Change "Kindle 3" to "Kindle Keyboard".