Touchatag tags are standard issue NFC tags that cannot be overwritten, read more
Good news for all our tagging fans as more and more NFC enabled mobile phones come out. These phones all read out the touchatag tags and initiate the linked applications that can be configured via the touchatag dashboard.
touchatag provides tag reader and information sharing functionalities that gets round Gingerbread's read-only limitation by allowing the user to associate data with an existing tag and hold it in an online database. When that tag is subsequently read, touchatag retrieves the stored action — a URL, or other data — from the cloud and acts on it.
To see some use cases in action and to create some applications yourself, you can join touchatag at Droidcon.be - Brussels, January 21st. http://www.droidcon.be - we will also provide some free tags as well as some touchatag starter packages to the Android community.