When i started writing Maep, there wasn't a single simple mapping app for the n900. This situation has changed and now we have a bunch of applications dealing with maps. But they all implement them their own way. They all stored cached data at different places, so one app can't re-used data already fetched by another one. Some have nice overlays, others don't. Some are fast, some are very slow. Some work behind network proxies, some don't. Very few of them have a way to configure the maps they are using (e.g. the ability to add custom ones). And none of them allows for things like bulk-downloading for offline usage or cleaning the local tile cache.

I think this is a very bad situation and currently we are in the nice situation that there basically aren't any QT programs making use of maps. So this is the right time to try to make some unified map widget to be used by any qt app that needs a map.

There are a few approaches like the QTMapControl or Marble. Both have already been ported to Maemo5/QT and both of them are far from being complete.

I thus ask you: What do you want from such a widget? Please keep in mind: We are not talking about a single application, we are talking about a widget (one component of a complete user interface) being used by applications whenever there's a need to show something on a map. Existing applications that already have map widgets or may have a use for one are ecoach, gpxview, belltower, fahrplan, the foto viewer.