True to my word I've begun work on a gallery application to show my Picasa Web Album here at jah's world. I've decided to build it with Google Web Toolkit (GWT) to create an entirely client-side javascript gallery which uses the Picasa Web Albums Data API to fetch a json feed of my photos and display them in all their splendour.
So far, I haven't got very far, but I have created a new open source project at Google Code: PicaVue and committed some code to the svn repository. The aim is to have an albums index view with a thumbnail for each album and from there you can elect to view an album as a gallery of thumbnails or as a slide show. It will be simple to deploy to any website and hopefully easy to style to your liking. We'll see.
This will be my first real foray into GWT land and it shows - the source is seriously spaghettified, but I'm getting the hang of it and it will eventually be a beautiful thing!
If you'd like to contribute, you are more than welcome. If you want it now, you might like to take a look at PWI which I perhaps should have examined before I started coding (and not just two minutes ago).