I've been working on Crombz.com in the last few days to integrate Google Maps. At the same time, some "rules" were bent.
Now you can see the 99 closest messages around round. Eventz also has been modified to integrate with Google Maps, showing a better view of your surrounding.
Crombz.com is still in BETA, so expect a few changes from time to time.
Share with your friends and enjoy!