I think the pictures are pretty good already, but yes, perhaps.

If you wanted to dive into more feature work, possibly the next thing is thinking about CEOs who might want a) Outlook integration, and b) a way to shade off their calendar for privacy somehow. Another thing could be to stick more with consumers and have a way to display recipes on it? Maybe if there's a recipe service you could partner with that has a decent API?

But in general I reckon you should market the Google Calendar stuff, which already exists and looks awesome!

A nice application for this might be places that have reservations that would be helpful if displayed. For example, tennis courts, squash courts, etc. People make the reservation online and, when they get to the facility, often don't remember which court they've reserved. Having it on a display would avoid having to look it up on the phone.

Those sorts of places also might have a budget for something like this.

That's a good point - outdoor places would appreciate screens like this that you can see in the sun.