This document discusses how Windows 8 can be used for different types of apps, including entrepreneur consumer apps, enterprise consumer apps, and enterprise line-of-business apps. It notes that Windows is popular for building both consumer-facing and internal enterprise apps, and that Windows 8 introduces a new "metro-style" of app and supports desktop, web and metro-style apps. The document also discusses some of the concerns and considerations for each type of app in the Windows 8 environment.