In using the group intercom feature we found that if a rider in the chain is dropped, the group chat ends and has to be reset up by the creator (probably not the safest thing to do esp if you are in some curvy roads).  It would be nice to do the following:

1. have some way to auto connect such that the group intercom is re established when a rider is dropped
2. Notify the other riders/creator with a tone if someone is dropped