Hmm, I should've mentioned this a few days ago when I did it, but I did kind of the same as Jun wrt the packages descriptions and name, and had the intention of making it be linked from the core docs too. Jun, I'll take a look at your acs-core-docs file and possibly commit it.
You can see it at http://208.184.248.90/packages/package-list (this is the openacs.org site that we are getting ready for LinuxWorld). While doing that (this was also a quick and dirty thing that I'll make better) I noticed that many packages have no or crappy summary and descriptions.
For example, ETP has "Nothing Yet". ACS Service Contract, an important piece of the infra-structure has nothing at all. And several others. I agree with Lars that we should be committing resources to cleaning up the system in general, and this _as part_ of the better-marketing effort (with which I agree too).