Jeroen: this is a really important topic, thank you for bringing it up.
I should note that the project page that I've set up isn't completely done yet. The packages that have "Description" in the description column have not been updated yet.
I agree that we need package ownership or gatekeepers, and I'd love to see some attempts to define these roles. Perhaps there could be three tiers of package developers, depending on how much time or effort people are willing to put into the package.
My reason for putting together the project page was motivated by the same frustration: it seems confusing who is responsible for what (and how to become a contributing part of the community), and I haven't seen much activity from the OCT recently. Perhaps they are busy with client work? That's good in a way, but I've been wondering what's up.
I'd also like to see us develop statistics on OpenACS that we can use to measure the growth of OpenACS. Are we attracting and keeping developers? And perhaps more importantly, are we attracting and keeping administrators who install our software but don't program them? My take is that we are very slooooooooooooooooooowly growing, but that's really not going to cut it if we want to keep OpenACS as a vibrant platform.