I can't believe I only just found this group. In case you didn't get it through Planet Drupal, at CivicActions I have been working hard on the Witness Hub Map. It is a mashup of google maps with the Hub with enhancements that make it appealing, interactive, fun and (almost) infinitely scalable.
Currently you can see the map has a large amount of markers on it and it has a full-screen mode and switcher. I've just implemented a delayed marker loader that loads 4 markers per 1 second (or other rate) which keeps the map usable and responsive while loading 100s or 1000s of markers.
We have more exciting developments in the works and I plan to contribute the code in the near future. I may also be presenting this at DrupalCon.
I'd be interested in feedback and the best way to contribute this.
Image may be NSFW.
Clik here to view.
Partially sponsored by CivicActions and Witness.
