mobile application business!!!

Someday i will start the business, maybe...
what i will designed now is mobile application business.
but i can not create it.
now i study hard it, it is joke... i can not have studied it.
but i will want to be able to create mobile application and or so.

the important for mobile application business, i think now, is the following two points.

(1) operation and maintenance of the application future.

      maybe it will cost very high. but it built operation and maintenance company of the application.
      i think someone will do it with me.

(2) by free application how to get paid the money. it is business model.

      i think future that most application is free.
      How will we get the money?
      the important is the business model of it.
      Someone has any good ideas?