So, you can post automatically-geotagged status updates or links from within GMail, the Google mobile web site, and the Google Maps application for Symbian/WinM

So, you can post automatically-geotagged status updates or links from within GMail, the Google mobile web site, and the Google Maps application for Symbian/WinMo/Android. The updates can have rich text, embedded images, threaded replies - closer to FriendFeed or Facebook than Twitter. You automatically "follow" your Google Chat/GMail contacts, and you can make each post public or friends-only. You can also browse "nearby" buzz from strangers, by location. They're saying that it will have open data / open APIs, and can aggregate your data from external services like Twitter and Flickr. They mention related standards that Google is promoting like PubSubHubbub, WebFinger, and Salmon.