In a recent post to his blog Dougal Campbell has posted about a geolocation plugin for WordPress that will let you automatically tag your posts based on here you are.

This Geolocation Plugin will be a nice addition for people who do travel blogging or who write about things in a particular area (restaurant and business reviews, hyperlocal news, etc).

The power of this plugin comes when you're using a device with a GPS in it (like an iPhone) that can feed the information into the plugin. The result is a link that users can hover over and get a map of the location.