This seems like it might have an accessibility audience; easy navigation for people without a mouse.

Simple question to frame the inquiry: What's the advantage of your technology over control/command F and control/command G? The answer to that probably has hints as to a possible audience.

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I've been hacking on a basic javascript-based regex highlighter (MIT license) that could be incorporated into a similar web technology, if you were so inclined. Check out http://www.jacobrothstein.com/highlightRegex/demonstration.h... for a demo and http://github.com/jbr/jQuery.highlightRegex for the code. Enjoy!