We meet in University of Iowa ITS Room #2951 in the Old Capitol Mall.
We normally give short talks for other Rubyists in the community. Sometimes they're longer if someone has something to present. We've been doing 5 minute lightning talks recently, too.
For the Jun 6, 2013 meetup, we'll probably be talking about AdoptaLOL (http://animal-center.herokuapp.com/), a Rails app we made for the National Day of Civic Hacking. Others are invited to present something as well, if anyone is interested.