Shortcuts are particularly handy with the modern Windows and Macintosh graphical interfaces. The icons and menus available on today’s machines may be easier to learn than the “command lines” of earlier computers, but they can nevertheless be cumbersome, requiring a fair amount of attention and hand-eye coordination. Shortcuts let you quickly dispatch frequently used commands.
Shortcuts will be important because they along with file formats are very big entry barriers in people adopting alternate operating systems like Linux. Shortcuts provide a certain familiarity to users. For the key Linux programs, it will be important to actually replicate the Windows keyboard shortcuts to break one of the entry barriers.