I heard someone complaining the other day that every iOS application has the Share button in a different place and sometimes a different icon altogether, and poured another one out for the poor, misunderstood Charms bar.

Windows 8 had so many great ideas and it is an open question if Microsoft had stuck to their guns a little longer and waited for more people to get used to where their cheese moved if Windows 8 might be even more fondly remembered for moving touch UIs forward.