[0ptr]

Is it missing fields for e-mail and logo? Or have you specified this actually somewhere (i.e. not just examples?)

I think this is great idea, however Google has something like this already (microformats based) http://maps.google.com/help/maps/richsnippetslocal/ maybe adopting this would be easier?

[fesja]

about the fields, check out the docs https://github.com/fesja/businesstxt/blob/master/structure.m...

about rich snippets, go to http://news.ycombinator.com/item?id=4438320