I couldn't agree more. The content has been relevant from day one and it's been looking even better ever since. I've passed it in a few lectures already and people really love it already :-)
There was no bug tracker for nginx apart from the mailing lists up until 8 days ago :-) That's a pretty good and important addition for the project to engage with the community in my opinion.
Node.js neither. It merely passes the request to PHP-FPM. Neat hack but I fail to take it seriously. I don't see the benefit. Maybe I missed something.
Node.js is low-level enough to do some protocol things fast enough PHP can't. I can imagine building a load balancer or proxy to PHP. Yes, it's probably not the best solution, but it could be done.
I think it'll be very interesting to see people distributing and replicating CouchApps. This could allow us to potentially skip completely the AppStore and have our own CouchAppStore.
For now we are aiming at a use case where developers would embed Couchbase in their app and sell it in the App Store. I kinda doubt Apple would approve for sale (free?) a generic CouchApp player. But still there is lots to gain from being able to sell your CouchApps in the App Store.
Yeah, this would be nice, but it is also totally understandable that it is not allowed. "Just" adding reliable sync to native iOS apps and single-package CouchApps is cool enough :)