You can do this now in Pr CS5.5, and possibly earlier versions.  On the Timeline Track panel, there's a diamond shaped dropdown menu (Show Keyframes) from which you can select "Show Clip Keyframes."  Do whatever automation you want on your clips, and the automation will ripple when you move clips around in your Sequence.

I didn't infer that from his post, but I can see how one could.  Using keyframes is automating volume.  And if one wants to ripple automation, that's one way to do it.

Another is to set Clip Volume with the Clip>Audio Options>Audio Gain settings.  You can subdivide clips with the Razor tool, and give each section it's own volume.  A great advantage of this method is that you can visualize if your audio track is mostly even, as any changes you make with Audio Gain will affect the size of the waveform display.  And of course, these settings also ripple.

I made a keyboard shortcut for Audio Gain, which really speeds up my "automation" of audio clips.

Jim Simon wrote:

 

Using keyframes is automating volume.

 

Well...in this context, "automating volume" refers to using the Touch, Latch and Write options of the audio mixer.  If you set the keyframes yourself, that's more of a "manual" adjustment.

Well then, let's extrapolate from your statement.  The instant that you start moving the "Automation Fader," you have made a manual adjustment.

There's no way to get to "automation" without doing some work, "manually."

The "real" automation is in the playback, irrespective of the method you used to get there.

(BTW, I think that rippling track automation is a damn good idea, and it should have always been there.)