Ask HN: Need Idea for a product

I have pretty good idea about emberjs, node/express and now I want to build something which helps me in learning these skills better. I've got an idea to build a Hosted Status Page but a real-time one. If the status is updated, there's no need to refresh the page to see the update.

Before starting on this, I wanted to ask fellow HN members whether they have a better idea to which I can implement?