For iPhone fans out there! Everybody can try these applications. More fun with your iPhone GPS.
Graffitio
The app uses GPS technology to identify virtual walls close to your current location. You can then leave your mark on them for others to find.
Twinkle
An app that focuses more on the GPS element than Tweetie does. Like an internet chat-room circa 1995, and it has its fair share of weirdos. Good for a couple of hours, but probably best to steer clear.
GPS Tweet
A less simple-to-use Twitter app that gives you a menu, allows you to attach a photo to it, and Tweets your comment, along with a link to a Google Map with your location. A bit like sending a photo-text-message that tells people where you are. Cue lots of tourists Tweeting pictures of the Millennium wheel.
Aka-Aki
A sexier version of Twinkle that boasts a friendlier interface and a potentially less oddball community of users. Also more forward thinking – it allows you to update your Twitter feed while looking for people with similar interests nearby. You can also classify yourself with certain tags (interested in reading, watching films, the weather etc).
Happy GPS & Bye!.