IIRC, the Above & Beyond program was discontinued at the end of 2001. I gave out my last one in early 2002; the FA who received it was grateful for the recognition even though the program had ended and it wouldn't result in any tangible benefit.

AA discontinued its similar program (You're SomeOne Special, or "SOS") at the end of 2002.

In my mind, both moves were a mistake. Who better to recognize and reward great service than frequent customers? But as the other posters have mentioned, the airlines aren't focusing on either great service or frequent customers anymore these days.