This is nothing too knew. They have been talking about Bluray for quite some time. They claim 2010 is when it will appear. I say 2030 before it becomes standard. With all this new technology comes all this upgrading and upgrading. While technophiles will eat it up, most people will be slow to catch on to EVERY new advancement.
Who the hell knows what will be being invented when this finally comes out?
There are several hosted wiki solutions, ones where all you have to do is set them up and they run off of the hosting server. Here's a few I found: http://www.schtuff.com/ http://webcollaborator.com/ http://www.pbwiki.