However, the steps no longer work in 1.7, except for if you use the Official buttons. What if my client decides to switch them to a different style at some point? Also, if I modify the .php file directly, it will be overwritten when my client updates Jetpack at some point after I deliver the site.
Is it possible to request implementation of this feature? It seems logical, especially since Jetpack touts that the wp.me shortlinks are now included to “make sharing easier”.