PowerOS 21.0

PowerOS 21.0 is a version of PowerOS released in 2003 by OS-Ready, with the Luna-like interface introduced in PowerOS XP. It is the last version to contain Netscape, due to the fact that the next version required Internet Explorer. As a result, OS-Ready decided to create a new browser engine called "Blink", which would eventually become the basis for Chromium and most modern web browsers. This new browser would be called "WebReady" (named after the canceled web browser project that they developed before switching to Netscape).

New Features
PowerOS 21.0 introduced many features, mostly to compete with Windows XP.
 * Netscape 7 (Earlier Versions; replaced in a service pack [start menu link removed; still accessible for compatibility purposes])
 * An additional theme (Luna)
 * WebReady 1.0 (Introduced in a Service Pack; based on the then-new Blink engine)
 * An improved Penguin, now working with most Linux distros in 2003 (including the then-new Arch Linux and Fedora distros) and older versions of PowerOS (even as early as 1.0).