There’s an updated version of the SharePoint 2010 Google Maps Web Part available for download here: http://sp2010googlemaps.codeplex.com
We’ve fixed a bug with multi-line labels. :o)
Works on-premise, in the Sandbox and in Office 365.
JoelBlogs - Joel Jeffery's Microsoft 365 Blog
Microsoft 365, SharePoint, Teams and Office 365 Architecture, Development, Administration and Training