Piuk, I'll suggest another feature. Hope you are adding to TODO list.

I would like to see a page with map, listing the places that accept Bitcoin. See my suggestions:

1- I think you should request and add information to www.openstreetmap.org
2- Openstreetmap already have tags for bitcoin payment, see: http://wiki.openstreetmap.org/wiki/Key:currency and here: http://wiki.openstreetmap.org/wiki/Key:payment
3- Look this great example that it's opensource, from bewelcome: http://alpha.bewelcome.org/searchmembers
3.1- See on map the amazing option to (search using map boundaries).
3.2- The javascript library of the map is: http://leafletjs.com/
3.3- bewelcome information about switch from Google to Osm, http://www.bewelcome.org/wiki/Switch_to_OSM

What do you think?