Topicalla "Topicalla allows one to view information using a UI that is generated based on the kind of data available. The user can augment, customize and replace both the data and UI as they see fit. For instance, the user might want to view information about a movie. Data could be provided from different sources, for instance, cast info from one source, reviews from another and showtimes from yet another. The UI, or even parts of it may be provided by yet other sources.
Topicalla uses a custom template language, which is kind of like XUL templates, but uses an XPath-like language for gathering info from RDF sources." Screenshots.
All I can say is "Wow!" and "About time!". All good software deserves a developer blog and this is no different.