As this API has just launched, it is highly advisable that you let me know if you build an application so I can contact you should any of the API details change - it's also great to see what people are building and take your feedback on board to improve the service! Alternatively, you can subscribe to the web log on my website or follow @WikiLocation on Twitter for all of the latest updates.
If you'd like to get in touch with me, then please email me via [email protected] or you can use the contact form on bendodson.com. If you are reporting a bug or error, please give as much information as possible including the request you made, any response you received, and any other relevant information (e.g. if performed via PHP did you use cURL or file_get_contents(), etc.)
Alternatively, you can follow @WikiLocation on Twitter and send me a message there!