My pinky is just as strong as the rest of my fingers, because I learned that without the pinky, you are using only 75% of your ability, physically.
Now, about your amputated pinky...
If you are into the blues, well you didn't really lose much. I've never seen Eric Clapton use his pinky (he has a really bad technique though), and i have all of his DVD's. (chords don't count).