GeOSM2 is a widget that adds a minimap to your sidebar(s) displaying the location where you posted the entry.
Q: Why aren't my map showing up? A: This have many causes. The main one being that your host is grabing too many tiles from the OpenStreetMap server. Consider establishing your own tile server.
Q: I still see needles even if I removed the "needle" tag from the widget setup A: This is a error prior to version 0.8.3. Upgrade to atleast 0.8.3 to make it work