There are some really smart individuals in this forum, and I'd love to see some type of collaboration amongst us. For example, we could vote on a few ideas and develop the heck out of it!
I for one have been struggling to build my own version of an Events Calendar. All the plugins I've encountered are buggy. If people add snippets of code together and run a bunch of tests we may come up with awesome results.
This idea may be better suited once we have Justin's forum plugin up and running.