I recently started up a project on CodePlex. The project is to create a software application to help run an offline poker league. My main reason for creating this was not because I see a huge need out there for an application like this, it's more one of those projects I'm sure we all do to give us a chance to play with some new technology. In this case it's my chance to get familiar with CodePlex, and do a project from the ground up using TDD and some other agile concepts. That it can also help with the offline poker league I run is just a bonus.
I'm just in the process of getting up and running, and getting my builds and CruiseControl.Net configured properly. I have the architecture I'm going to start with all setup, and the skeleton code checked in.
Feel free to check it out at: http://www.codeplex.com/Wiki/View.aspx?ProjectName=PokerLeagueManager
If anybody is interested in helping out with the development let me know. I was planning on just doing this solo, but if anybody is interested I could always use the help. It's a great opportunity to experiment with CodePlex, Team Foundation Server, and/or TDD if any of those things interest you.