Sensor Dust issues a thing of the past?

I've posted here before some techniques for dust removal and links to other sites for this topic. Canon is coming out with the new Rebel XTi that has both a self-cleaning sensor to remove dust as well as software to automatically remove dust in post-processing. The sensor vibrates and changes polarity to shake off dust from the sensor. Recommendation is to then use the blower method to remove the dust from the internal box. Clean air (pure air) or bulb blowers with the camera facing downward to blow out the dust. The software identifies dust particles not shaken off and clones them out. You take a baseline photo of a white background prior to shooting, then in post the software reads the baseline image, identifies the dust locations and removes them in the subsequent photos. I'd like to see that in action. If you change lenses after the baseline imagae and introduce new dust specks the software likely won't find it, however. You can find more information in video form at David Honl's blog