Mole (Mobile Organic Localization Engine) provides room-level geoposition estimates using existing WiFi infrastructure. When you create an entry in the database by naming a room, your and other users' mobile devices will recognize when they are in that room. Other applications can poll or monitor the current room estimate and act accordingly, with context aware behavior. Because too much WiFi scanning drains batteries, it uses accelerometers and other tricks to keep scanning to a minimum while keeping update latency reasonable.
SalatReminder is a simple Atom feed generator that displays today's Salat timings based on your IP address' geographical location. Prayer timings are sourced from Islamic Finders Prayer Web service. Default options can be configured in a config.ini file. It does not work well with proxies that affect geolocation, but the title of the feed contains the current city and country.
GRIFIN (Geospatial Reference Interface For Internet Networks) is a design for a new network service providing information via the geo-spatial-temporal context. It is different from other existing Internet services, with strong focus on interoperability, decentralized architecture, and visualization.