WPMUDEV Google Maps and BP Checkins integration

Hi

I am looking for easy user location notifications that are integrated into the Buddypress activity stream.

http://imath.owni.fr/2012/04/01/bp-checkins/

Is this possible to integrate with WPMUDEV Google Maps?
Once pin-pointed could the user display markers around their location?

If this is impossible, does anyone know a way to do this?

Thanks

John