t2f
A service that accepts image uploads from twitter clients (as defined here), and posts the image to flickr. In the end it returns the shortened URL for the image back to the original caller. The response is in the syntax defined by Twitpic.
The code is written for Google App Engine and uses the flickrpy to connect to Flickr.
Demo
Not a real demo, but an interface to the service is available at t2f
Download
The code is currently not in a presentable state. I’ll clean it up and make it available soon.