Ask HN: Any exiting ideas for a new project (Big Data, Mobile, etc)

Hi everyone, I'm a CS masters degree student and I'm looking to work on an exiting new project for my final project exam.

I want to start working on a project that it will solve a real problem & can be used in real life - because I found that I'm more motivated when I'm working on projects that can be used by real users and not just work on a school project.

I'm looking to work on projects that involve Big Data & mobile - so if you have some ideas you want to share I would love to hear them.

Thanks - and let the brainstorm begin! :)