It may not be as sexy, but starting a new business which builds on an existing technology or business model is usually less risky than introducing that ultimate new disruptive technology. There are many levels of innovation that go beyond copying someone else’s idea, but stop short of pushing the leading edge (bleeding edge).
Many of the major business successes started this way. McDonalds didn’t invent the fast food model – they simply improved on the cookie-cutter White Castle process. Before Wal-Mart made the low-cost high-volume business model famous, there was Ben Franklin and Two Guys who touted it way back following World War II. And we all know Facebook didn’t invent social media.