"Petitioners' challenge depends on characterizing Proposition 8 as a radical departure from the fundamental principles of the California Constitution, " their briefs said.

CNN: Prop 8 proponents seek to nullify same-sex marriages

Unlike previous releases that have, essentially, revamped (or, in at least one case, mercifully killed) existing features, Microsoft is touting Windows 8 as a radical reimagining of its core product.

CNN: Final preview moves Windows 8 toward tablets

With Windows 8, Microsoft made many radical changes, not the least of which being the deletion of the fabled Start button.

ENGADGET

Windows 8 was a turn off for traditional PC users because of its radical redesign of the user interface which required consumers to learn quite a bit just to be able to perform their routine tasks.

FORBES: Microsoft Hastens Demise Of PC Era And Drags Down Intel With Windows 8