is the party still on, considering low activity in signing up for it?

Apparently it's October 20 (see the info above).

What is that place at Jauniela 19/1? Office, cafe, ...

There are two factors that affect the performance of web (HTTP) lookups: latency and bandwidth. Latency depends on the distance between client and server. You won't be able to send data faster than the speed of light. Bringing the data closer to the client helps to reduce latency, especially for small lookups. Bandwidth becomes the limiting factor when you transfer (large amounts of) data over under-dimensioned pipes. In general, I'd be a much more happy person if people would use HTTP caching headers (Expires and such) more often, as then a Squid proxy can bring substantial performance gains.

Parallel programming is hard. Bummer. I'd rather be interested in an article that talks about *monitoring and debugging* parallel programs (I currently struggle to monitor parallel algorithms implemented in Java). Anybody?

Semantic Web technologies (in particular RDF, a graph-structured data format) are ideally suited for publishing data. Also, these technologies facilitate the integration of separate pieces of information; integration is what you want to do if thousands of people start publishing structured data. Linked Data (RDF using HTTP URIs to identify things) is already used by the NYT and the UK government to publish data online.

Yes, the better the data the better the system will work. However, VisiNav works quite well on relatively scruffy web data due to the integrated ranking component.
The underlying data has to be in graph-structured format (in RDF syntax); reasoning, most notably object consolidation, is supported via OWL. Once the data is indexed, users can search and browse right away. There's no configuration needed, because the ordering of data is done based on the calculated ranks. The UI can be configured via XSLT and CSS for adding a logo or changing the look and feel.
We've developed VisiNav as part of a research project, and the university owns (and manages) the IP. I guess they will make it available free of charge for educational and research organisations, but commercial applications would require a license.

Hi, there's also VisiNav which lets you assemble complex queries over data, covering keyword search and faceted browsing (as Flamenco) and a bit more (path navigation). Drag and drop UI, where people who don't know facets or path navigation can do keyword search without being distracted. -- Andreas. Disclaimer: I'm one of the developers of VisiNav.

There's the Future Internet Symposium 2009 (http://www.fis2009.org/ ) in Berlin next week which exactly targets the topic in the post. From the call for papers: "With over a billion users today's Internet is arguably the most successful human artifact ever created. The Internet's physical infrastructure, software, and content now play an integral part of the lives of everyone on the planet, whether they interact with it directly or not. Now nearing its fifth decade, the Internet has shown remarkable resilience and flexibility in the face of ever increasing numbers of users, data volume, and changing usage patterns, but faces growing challenges in meetings the needs of our knowledge society. Yet, Internet access moves increasingly from fixed to mobile, the trend towards mobile usage is undeniable and predictions are that by 2014 about 2 billion users will access the Internet via mobile broadband services. This adds a further layer of complexity to the already immense challenges."

In this case "free" means free as in you can do whatever you want with it (provided you have the right tools to do it) and not "free" as in free of charge.

Does that mean that people should not be developing GPL-licensed software for iPhone (as it violates the spirit of GPL, according to what you wrote above)?