The maps mashup landscape changed forever yesterday with Google's announcement of My Maps, a new service which allows non-programmers to easily create maps mashups. With tens of thousands of maps mashups out there already this of course quickly lead to a tremendous increase.
When Google first launched its location-sharing service, Latitude, developers were left wondering how to access their users' data. Now, over a year later, we finally have a Latitude API. But we also have a number of other similar services that have better traction and are arguably more fully featured.
It may seem like lately geo APIs and mashups are getting a lot of coverage here on ProgrammableWeb, and for due reason: the geo API providers have been busy. From the release of v3 of the Google Maps API to the release of Yahoo!'s Placemaker "geo-enrichment" platform, there has been a lot of activity on the mapping front in the last few weeks.