Do you want to make your own layer? This tutorial tells you how to do it! These are the requirements to create your own layer:

Webserver with PHP and JSON support
MySQL database with phpMyAdmin
For testing: Layar installation on your iPhone 3GS or Android based phone (with GPS and compass)

Stedelijk Museum: Creating a Layar layer: a step by step tutorial

(via Bruce Sterling)

Programmer Joey Hess found that Palm Pre’s operating system webOS sends his GPS location back to Palm every day. Hess also found code that sends Palm data on which webOS apps he has used each day, and for how long he used each one.

“I was surprised by this,” Hess, who bought the Pre about a month ago, told Wired.com. “I had location services turned off though I had GPS still on because I wanted it to geotag photos. Still I didn’t expect Palm to collect this level of information.” [...]

Palm’s actions trigger questions about consumer privacy and the extent to which handset makers and developers are gathering and using data about buyers’ behavior. In this case, some of the concerns may be overblown, says Charles Golvin, an analyst with Forrester Research.

Golvin cites Sun CEO Scott McNealy, who said in 1999: “You have zero privacy. Get over it.” Says Golvin, “While that is certainly overstated, it is also true. Consumers, in general are concerned about privacy but look at the number of people who are willing to give up every detail of their personal lives for the opportunity to win a big screen TV.”

Wired: Palm Pre Snoops on Users by Phoning Data Home

Shizzow encourages users to accompany each location update with a short message describing their current activity. The added context is super helpful in real life social applications, and it elevates Shizzow above a simpler service like Fire Eagle, which just provides location data, and Brightkite, which is being used more like Twitter with location attached. By contrast, Shizzow puts location at the fore.

Full Story: Wired