Latitude isn't enabled in the UK, and some other countries, on the T-Mobile G1, however it is enabled on many other phones e.g. Nokia N95. This is frustrating, a Google phone without Google Latitude.
Latitude Launcher can enable Latitude for you if you have 'Rooted' your phone
Metroid is an Android itinerary planning application meant to help users with public transportation systems worldwide. Metroid has been designed with extensibility in mind. It is able to support any public transportation system provided that the right map is available.
Metroid is based on maps
FIRBI (Finally Real-Time Bus Information) is an Android application for Seattle bus riders. It provides real-time information about arrival times of buses as well as GPS integration, maps, and favorites.
· Real-time bus information: FIRBI lets you know if your bus is on time or running late
LocationFinder is a LBS application. Through this application you can search any location in map. Click anywhere in map and you find the area, nearest city and country. Apart from this, user can edit any location for search and can see the location in map
MapMakr If you’re an aid worker responding to a humanitarian crisis, up to date, accurate, and easy to read maps are vital. Knowing whether a bridge has collapsed, a road is passable and where you can land planes bringing in aid is really important
InstaMapper is a free service that allows you to track a person or vehicle online in real time using a GPS-enabled mobile phone.
To use InstaMapper, you create a free account. Registration takes only a minute or two. All it is asked for is a username, password, and a valid email address.
Next, you install a small application on your GPS-enabled phone
LooLoo is a modern, location-based service designed to support and utilize all of the advantages and cool new features of Google Android platform. It has strong integration with Google maps and delivers a fantastic mobile experience