I love working with the Google Maps API. There are so many useful applications of a technology for presenting information on a map. Here's my latest: repeaterfinder.
Like all good software projects, I wanted this myself when recently travelling to Coffs Harbour. The only way I could find where repeaters are was via the WIA's PDF listing.
What I dreamed of was to be able to go to a site on my iPhone and have it use the GPS location and then show me all the nearest repeaters in order of distance along with their frequency, CTCSS and other info. I'm not quite there yet, but I am on the way to that objective.
The current web app uses browser geolocation to open up where it thinks you are - this isn't terribly accurate but it's a good start.
Data at the moment is derived from the text list the WIA kindly sent me, it's pretty rough and I haven't fixed up all the modes such as DV which I'm interested in.
I have loads of ideas about where this could go, and would be interested to hear from potential users about what they'd like to see - please comment below.