The reason I ask: My first impression was very strongly, "This is a neat tool, but why would they limit themselves to bands?". You could do this with ANYTHING...but with branding like "bandsintown" your potential market is 0.01 percent of what it could be. I strongly recommend getting a generic name (like myspace) and then:
1) Allow different product categories (Nearest coffeeshop, nearest book store that sells a certain book, nearest movie theatre playing a certain movie at certain hours, etc).
2) Allow different views of your model. Tag clouds strike me as a flash in the pan. Allow charts, bar graphs, pies, etc, etc.