I used the instructions generally given in traditional touch typing courses while writing the instructions for this tool. I agree that sticking to the home row

I used the instructions generally given in traditional touch typing courses while writing the instructions for this tool. I agree that sticking to the home row puts undue stress on the wrists. When I began experiencing soreness in wrists, my girlfriend got me a Microsoft Natural Ergonomic Keyboard 4000. It helped and the soreness disappeared. By the way, even while working on a normal keyboard, I don't bend my wrists as shown in the image link you have posted ( i.e. the first image at http://www.kinesis-ergo.com/partners/health-safety/ergonomic-benefits/freestyle-ergonomic-benefits/ http://www.kinesis-ergo.com/partners/health-safety/ergonomic...). I believe, the following statement from the article is not always true. "On traditional keyboards the span of your shoulders exceeds the contiguous width of the home row of keys. In order to position your hands over the home row it is necessary to bring your hands together in front of your body with your wrists deviated." My shoulder width exceeds my laptop keyboard by a significant margin. However, I don't have to bring my wrists together to type. I place my arms and wrists in a manner similar to what is shown in the second image in the URL I shared above, even for a normal laptop keyboard. Each of my arm approaches the keyboard from either side of the keyboard making about 45° angle with the base of the keyboard, i.e. the left arm approaches from near the left corner of the keyboard and the right arm approaches from near the right corner. Fingertips of each arm is placed in a slightly arc shape over the four home keys. Forefingers are aligned with my wrists, therefore, each forefinger makes about 45° angle with the space bar.