First I need to say that I was incorrect. You don't doubleclick, you use "T" in Premiere Pro to get a Match frame, and "M" in CS3. Instead of calling up the whole clip in the Source Monitor, it calls up the clip with the proper in/out.
And no, this is not new, it is available in Premiere Pro 2.0.
Just set in/out in the Source Monitor, but the mouse in the middle of the picture, and drag.
Steven
http://www.stevengotz.com