As part of a new approach by Microsoft in building and delivering Microsoft Windows 10 to customers, they are expecting real-time feedback from customers and fan base as the development process is ongoing. Users who are comfortable using the pre-release software can enroll to Windows Insider Program and can be part of ongoing development process by providing feedback to microsoft.
Users will automatically get the new updated builds and users are expected to get things half baked ie. their may be a lot of bugs and surprises. But as a Windows Insider, you’ll have the ability to impact and influence those types of product decisions.
You will be able to use the Windows Feedback app to report on any issues you encounter with the Windows 10 Technical Preview or tell Microsoft about something you like or dislike.