OpenSMIL is SharePoint Map Integration Layer - OpenSMIL provides a Map Web Part, a custom data field, a mobile client and exports geometries to KML.

SMIL is an open source project with the aim to geo-enable SharePoint.

Deploy the wsp's and add BingKey to your web.config like

<appSettings>
   <add key="BingKey" value="{your-bing-map-key}" />
</appSettings>