I like this because we all have to find the motivation to use our skills even between jobs. Other people may have self-motivated side projects, but I find it hard to design without a real world problem that matters to other people. OpenIDEO is great for that. And it's a way to feel a little better in very difficult circumstances.
I love that this idea includes the mobile app. Even with well-designed cards, some of us need concrete examples to learn new concepts. The mobile app is a great way to hear how others interpreted the cards, used them to solve their own challenges and learn from their experiences. Nice!