I've installed the current OpenACS 4.6.3 and played with a variety of packages. Everything I've tried (news, notes, notifications, search, photo-album, postcard, comments, wimpypoint, survey, ticket-tracker, workflow) worked beautifully without a glitch.
I am especially in awe because of the workflow package. It's something that I can use it quite a lot at work, it finally looks like my employer may get something in return for the hours I've spend messing about with openacs.
Would it be possible to integrate workflow with SMS, so that users could interact with the package via their mobiles ?