Let's say you want to target the agrisoftware business. You might see if they don't have a tablet offering - then write a simple data collection app for farmers

Let's say you want to target the agrisoftware business. You might see if they don't have a tablet offering - then write a simple data collection app for farmers. There'd surely be forums online to give you some idea. Then show it to them, and see if they want to license it or buy your company. You can also pick an industry and field questions on LinkedIn or Quora.