Could a Gravity Trick Speed Us to Mars?

I recently heard a talk on a similar idea: <a href="http://en.wikipedia.org/wiki/Aerogravity_assist" rel="nofollow">http://en.wikipedia.org/wiki/Aerogravity_assist</a><p>A lot of technology still needs to be developed before something like this is viable, but if it were possible a trip to mars travel time would be cut down tremendously. If I remember right there were two launch windows a year using that method.

This seems to be talking about the Oberth effect.<p><a href="http://en.wikipedia.org/wiki/Oberth_effect" rel="nofollow">http://en.wikipedia.org/wiki/Oberth_effect</a>

Problem is, it doesn't discuss much on what those savings might be, only that they exist.