Introduced in 2011 keyboard shortcuts got a graphical UI and with it the ability to define shortcuts on the fly. The commands exposed to the feature were also expanded to include contextual commands, application menu and other areas. In 2012 we came back and picked off a few more items on the punch list.
Single Shortcuts
In 2011 expert shortcut users noticed something they didn't like. The shortcut feature displayed all matches and allowed the arrow keys and spacebar to make a selection as before yet single letter shortcuts used to always sort first in the order. When there were multiple matches but in 2011 they appeared last in the sort order. Clever to the end you discovered that by manually editing the XAML file and write protecting it the issue could be mitigated but I am happy to report in 2012 this workaround is no longer needed. The pre 2011 sort behavior is restored. You can now define a single shortcut like "Z" for zoom and it will appear first even if there are other matches like "ZA", or "ZF". Type "Z" then spacebar and voila.
Duplicate Shortcut Warning
In 2011 if you define a shortcut that creates a duplicate we post a warning. Duplicates are still allowed and can be found by sorting the list by the "shortcuts" column header.
Note: For some time we have been making an effort to ensure that warnings are reworked to be more informative. The dialog below could have said "Warning! Duplicate Shortcut Created". We now try to provide more information to help you understand what was done, what will happen, and the names of related elements so you can make a better decision - in this case the offending shortcut letter and command it is assigned to. The more a dialog communicates the less you have to remember - the system is less cognitively demanding. We also try to not to be too verbose, yell at you, or use a condescending tone.
Export all commands (including undefined)
This is one for those of you that want to define everything free of a friendly yet slower graphical interface.
In previous versions we allowed export but only of defined commands. This allowed commands to be easily transferred but didn't help if the aim was to make the definitions in excel or a XAML editor.

While I don't expect the calls for a command line to completely stop we've come a long way from R2009.
; )
_erik