[citation][nom]will_chellam[/nom]The whole point of a capacitive screen is that it relies on the conductivity and bio-electrics of a living human finger to work properly - I call foul on any 'scientific' test that uses anything different unless they can demonstrate beyond a shadow of a doubt that the actuator they used had absolutely identical electo-mechanical properties asa real, living, finger.[/citation]
They didn't use an actuator, they asked humans to draw lines with their fingers. They didn't even specify which finger (thumb or index) was used. An actuated simulated finger would need to be shown that it was a reliable replacement (ie draws straight lines on paper) and then it would be a viable test apparatus. This test is also severally limited as it uses 3 devices that are essentially the same, and judge it against 1 other device. Where are the Nokia, Palm, etc phones?!