Like a Yellow pages/directory for malls. Idea in very nascent stage. Needs to mature further and to what the real purpose of the app is - to get people to the malls or to have them shop online from malls.

Good catch on a real problem statement of bringing businesses to malls and brands in malls who are competing against the e-commerce folks, but much need to be done to understand the entire ecosystem and then start working on products and services.

Its a very good idea - you need to make this mobile ready and should create push notifications to app users when they are near the store, you might want to build analytics around comparing prices of brands / offer