The plazes.com‘s new Plazer (that tool that automatically notifies the site where you currently are) now automatically updates your mood message (a short text you can show behind your screenname) in Skype to show your current location.
Additionally it can send a message to the callee to show him where you are when you call him or her.
And by the way: I now work for plazes.com : )
[update:]
There is a notice on the Skype blog about the integration
This work, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License.
Perhaps you should add, it does so in Skype.
oops. thanks : )