Entries for the current Developer Challenge are trickling in. We'll go live with our gallery in the near future so you can preview the entries as we get close to the submission close date and voting period. I've looked through a few of them and have seen really great stuff, but FYI there are fewer entries right now than prizes to give away, which means your chances of winning something great is very, very good right now!
To refresh, entries will close on June 6th, so you still have plenty of time. The contest is open to all, and will be judged by the merits of creativity and innovation in addition to technical accomplishment, so there is ample opportunity to win even if you're not an expert on Force.com (yet).
If you need ideas, post to the CDZ Developer Force profile's wall. I had one or two, and I'm sure the community can help out also with ideas they want to see implemented. There's still plenty of time to make something happen. If you need help with your application you can also post on CDZ for help, or get the email addresses of any of the Developer Force team there to ask directly as well.
I had an idea the other day for a system notification coming from Visio diagrams for stakeholders that I posted to the CDZ wall. If you have an idea you'd like to see implemented, perhaps post that to the Developer Force profile's wall and maybe somebody will implement it?
Lastly, in case you don't know how to do a screen video capture, Jing is a free tool to make your demo movie with. Above all, have fun with this!