Re: Resistive vd capacitive
Resistive screens have to be calibrated and often re-calibrated to work nicely. Additionally, they consist of two layers of plastic you press together, so you can't have any scratch-resistant glass. Then: Not only multitouch but also any kind of swiping or dragging is poor with resistive screens, since you need to keep pressing on the screen all the time, touching it is not enough.
And then, accuracy: Have you ever used an iPhone or iPad in anger? A good capacitive screen is as accurate as an resistive one. As long as a text is large enough to be read at all I can hit a word or a link even on my three years old iPod touch (which has not a single scratch on the screen, by the way). And if you have a system with an UI that has elements that are too small to be hit with a finger this is a silly system. Forcing people to use anything that *requires* a stylus or a fingernail is a sure way to make them hate you.
I agree that there are cases in which using a stylus is better than using your fingers but for what 99% of the users do 99% of their time capacitive is vastly better, period. Most people just hated touchscreens until capacitive screens came along. Some people don't understand that, but these are exceptions.
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