http://betanews.com/wp-content/uploads/2022/04/Tablet-forecast-Forrester.png http://betanews.com/wp-content/uploads/2022/04/Tablet-foreca... This graph is appa

http://betanews.com/wp-content/uploads/2022/04/Tablet-forecast-Forrester.png http://betanews.com/wp-content/uploads/2022/04/Tablet-foreca... This graph is apparently from the Forrester report quoted in the article. How does one come up with this? So in 2015, Windows8 (9?) will all of a sudden gain some good traction at the expense of Android market share but not iOS? How do you interpolate constant demand for iOS devices 4 years into the future when the first iPad is only 2 years old?