Give me some new ideas

Hello guys, I am looking for new ideas for my final year project.

I am completely out of ideas.

I can code anything in PHP, JAVA, dotNet. I can make apps of Android and Windows Phone as well as Windows PC.

Projects I've done
1. Home automation with Arduino.
2. Countering DDos ( Working on it ).
3. Lost Phone Tracking Android App.

Still I want some new ideas as soon as possible.

i was wondering if you could code a checker for mac?

thanks.

Marketplace kids: A Social Media Checker

I don't know, some cool app like twatter, instagram and shit like that? That would be cool.