Geotagging of tweets has been done before (the Tweetie app springs to mind). However the augmented reality visuals are a nice touch, especially if they work as accurately as the above demo video suggests.
There's probably something wrong with the fact that I get little buzzes of excitement when mobile apps that I use get an update. This morning's Google Maps for Mobile update was even buzzier than normal, though, because it introduced a new feature that people have been clamoring for for some time.
The new version of Google Maps for Mobile features a service called Latitude, which uses the GPS in your phone to track your location, and the location of your friends, much like Yahoo's Fire Eagle service. You can see exactly where your pals are hiding out, and there's plenty of built-in privacy control too.
According to Google, almost one trillion images now exist online, thanks to the explosion in popularity of digital cameras and camera phones. and the company is looking at ways to improve how users can search for the pictures they want.
Currently, Google's image search relies on textual information stored in and around images on web pages. This is fine to a point, but not only does it have the potential to be abused by people trying to make their web pages more popular, but it relies on a human to correctly categorise a picture and what it contains...
Plenty of people are already getting excited about geotagging, which means associating location information (e.g. latitude and longitude) with digital photos or other content and then Doing Stuff with it. For example, plotting it against Google Maps.
There are plenty of people out there geotagging their photos (uploading info on the location they were taking) already, but it takes a bit of knowledge. However, mobile application ShoZu has just added a feature that automatically geotags your photos...