Straight out of the fiction of Harry Potter is The Magic Clock. Just like in the novel this clock (is it still a clock even thought it doesnt tell time?) shows the current location of family members, from home to the doctor’s office, even to mortal peril (We hear its nice this time of year).

The clock hands are driven by 4 separate servo motors, which are maintained by an Arduino. The location of family members is updated wirelessly via Twitter. We think a script written for each member’s GPS enabled cell phone might be more trustworthy, but it seems to be working fine currently.

[via Make]

Layar brings augmented reality to your cellphone with the release of Layar Reality Browser 2.0. Partnering with Layar, Brightkite improves the experience by accessing their content, along with Wikipedia, Twitter, and other services; then by using the camera on your cellphone, maps friends and other users data on the screen, over top of the live feed. Simply aim your camera at a bar and find that two friends are inside, and read a reminder to yourself that you didn’t like the live music. It’s interesting to see how much is already implemented, and with an additional 500 API keys released, what new things will come from Layar?

Related: AR flash library released, Location aware task tracking

Mozilla Labs has launched yet another new project, this one a location based plugin for Firefox. Geode will let users to take advantage of location data embedded within a web page. Like [MG Siegler] at VentureBeat, we wondered what the point of a location-based desktop browser was, since most cell phones are now GPS-enabled. TechCrunch and CNET’s Webware, cite the example of a user who is looking for a place to eat while out of town. Using Geode, his favorite restaurant review site would know automatically to display eating establishments in the locale he is visiting. As semantic information permeates more and more of the web, we’re certain that we’ll see many more uses for a tools like Geode. Geode’s uses Skyhook’s Loki technology, which determines position base on what WiFi access points it sees just like the Eye-Fi.