If you make a new map for any place, please make it available for all Localizer's users by sending it to me at antlarr@supercable.es or larrosa@kde.org.
As new maps for congresses, cities and fairs are being made, they'll be available at both Localizer's homepage, and the homepage of the given event.
To make a new map, all you need currently is a text/xml editor. I'll release a map editor with next releases if there's interest.
Concerning the future of the development of Localizer, I have some ideas in mind:
Suppose you're visiting a city and you're looking for places to go, restaurants, hotels, etc. Imagine the power of Localizer applied to cities instead of "just" congresses. You open Localizer and you're shown with an aerial photograph of the city which you can zoom, pan, look for companies, monuments, theatres, cinemas, etc. Now you wonder, is it worth the walk (or taxi) to go to the other part of town to see that old church ? Don't wonder, just click on it and see a small description and photograph of it to decide for yourself! This is done! See example 4 for an example.
Suppose now that you enter a supermarket and want to buy just a couple of products, the supermarket map would be automatically loaded on the PDA by the wireless network just by going into the supermarket. You would have an updated map where you can search for any product you want, localizing it with precision, doing an optimum path for your walk. And you could even get the special offers of the day on your PDA.
All this will be possible in future releases of Localizer (if there's interest, of course).