I mentioned this cool guy Zachary Goldberg in my blog and in my talk before. While I mentioned his name in regards to his efforts to making sure GUPnP glues nicely with gobject-introspection and is usable from Python, he went much further than I expected and made a cool new UPnP control-point for N900 based on GUPnP in Python. He named it Zhaan (another character from Farscape in the spirit of Rygel).
Some mandatory screenshots:
You can check out more screenshots/specs of the project and follow its status here.
There are many people out there making cool UIs but they end-up using wrong tools and/or re-inventing the wheel so its nice to see someone doing cool stuff but the right way. :)