In 1987 Apple had already mapped out a vision which way they want to go. Look at that: It includes today’s digital assistant (like Siri but way more smarter) screen sharing concepts and a rough version of something like the iPad. It’s important to map out where you want to go because it might extremely helpful to focus and go that way.
What’s your long termed product vision? What would an article 5 years from now say about your product?