A measure of success

If the success of the iPad is measured in how often we try to pinch-and-zoom a picture in a magazine, then a measure of success for discourse might be how often we catch ourselves wondering where the Quote-button is after selecting some text somewhere on the internet. Or in an email.

As for me, it happens quite often. Too often. Arrrgh! Why does it take soooo long for good features to diffuse into other applications?