GeoChat for ArcMap has been out for a while and just got updated for ArcGIS 9.2. Hot on the heels of that release comes GeoChat for ArcGIS Explorer. I speculated that it might make sense for Google to add such functionality to Google Earth, but here comes . of GeoChat running on his blog and you can download it here. Now users in different locations can collaborate using a digital globe application. The possibilities are endless here, all you need in a jabber account (like Google Talk) and ArcGIS Explorer (well .NET 2.0 too, but don’t we all have that? 😉 ).