That app...I would use that.
As a San Franciscan and soon to be G1 owner, I would actually use that app. Well, even better would be if it pointed to the nearest Republican and nearest Democratic districts. Maybe add total population of the voting district as well?
I'm thinking this could be useful because, to a limited degree, political party affiliation might be a signal for what kinds of shops and services are available in the area. So as I'm driving along I5 (the big-ass freeway that runs the length of California) and I want to find an area that has "my kind" of retail, then I can pull this up and know which way to head. And which way is not so promising.
Great idea, Ted. Make it so!