Google Wave direct messages
Google Wave was built for groups, but it can be used like IM or email to talk directly to someone too. Google calls this a "ping", but it's really just a normal wave presented a little differently.
Protip: You can do a search for "dto:me" to see only messages between you and one other person. Create a saved search so it's easy to see your DMs.
Here are the other advanced search queries
Now what I need is a way to get notifications of new waves, so I don't have to keep checking it all the time.
